Does inbreeding increase the number of homozygous in a population?
Answers
Yes, inbreeding can increase the number of homozygous individuals in a population. This is because when individuals mate with close relatives, they are more likely to inherit the same alleles from their parents, leading to a higher frequency of homozygosity.
Over time, this can lead to a reduction in genetic diversity and an increased risk of genetic disorders and diseases. It is important for populations to maintain genetic diversity through outbreeding and avoid inbreeding. Inbreeding is the mating of close relatives, which results in an increased probability of offspring inheriting identical alleles from both parents.
This leads to a higher frequency of homozygous individuals, which are individuals with two identical alleles for a particular gene or trait. As a consequence, inbreeding reduces genetic diversity within the population and can potentially lead to an increase in the prevalence of harmful recessive traits.
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Related Questions
What's the purpose of the body's immune system?
A To block pathogens from infecting the body
B To fight off infections
D All of the above
Answers
Answer:
D. All of the above
Explanation:
Can't see option C, but since the other two options are functions of the immune system, I assume it'd be true. The immune system is meant to protect the body from infections.
Have a great day!
the genetically programmed time limit for cell replication to which each species is theoretically bound is called
Answers
The genetically programmed time limit for cell replication to which each species is theoretically bound is called The Hayflick limit for cell replication.
What are is a cell?All life forms, including the tissues of the body, are made up of families, which are the fundamental units capable of supporting life on their own. The three main parts of a cell are the cytoplasm, the nucleus, and the outer layer. The outer layer, which includes the cell, controls the substances that enter and exit the cell.
Why are cells significant?Cells are essential to all living things, both humans and bacteria, for both structure and functionality. Scientists consider them to be the smallest form of life. The chemicals, impulses, and biological machinery that cells create are essential to every biological action.
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Kendrick holds the rubber blue ball halfway up the ramp and releases ir (figure 1).The ball rolls down the ramp and along the floor beyond the end of the ramp. What force caused the ball to roll down the ramp?
Answers
The force that caused the rubber blue ball to roll down the ramp is gravity. When Kendrick held the ball halfway up the ramp and then released it, the force of gravity began to act on the ball and it started to roll down the ramp.
A ramp is an inclined plane that reduces the amount of force required to move an object to a higher level. The force of gravity, which is an attractive force between any two objects in the universe, acts on objects in the direction of the center of the Earth.
This force causes objects to fall toward the ground. When the rubber blue ball was released from the midpoint of the ramp, it began to move in the direction of the force of gravity, which caused it to roll down the ramp. The force of gravity was able to overcome the ball's inertia and caused it to accelerate down the ramp. Once the ball rolled off the end of the ramp, it continued to move forward due to its inertia.
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How are different dog breeds created?
A.) natural selection
B.) new dog breeds were created randomly by mutations
C.) Humans select dogs with favorable traits to breed
D.) New dog breeds are created by genetic engineering
plz help soon i'll give brainliest
Answers
Answer: D
Explanation: Because new dog breeds are made when people mix two different breeds together to make another breed
the parents of a child with hyper-igm syndrome used preimplantation genetic diagnosis (pgd) to produce a second child to serve as a cord blood donor to cure the sick child. not only did they have to make sure the donor child did not have hyper-igm, but also they had to be sure the child had compatible:
Answers
The expecting parents had to make sure that the unborn child's tissue matched that of their child who had hyper-igm syndrome.
Why does high IgM syndrome occur?Rare, one-in-a-million, and possibly fatal genetic mutations that severely compromise the immune system and render a person incapable of producing antibodies are the root cause of hyper IgM syndromes. Patients with hyper IgM are significantly more likely to develop recurrent and opportunistic infections.
Patients who suffer from HIGM syndrome are unable to switch from producing IgM antibodies to IgG, IgA, or IgE antibodies. Patients with this condition consequently have low amounts of IgG and IgA but normal or high levels of IgM in their blood. These several antibody subtypes each serve a different purpose in the fight against pathogens. Normally, B-lymphocytes can make IgM antibodies on their own, but in order to switch from IgM to IgG, IgA, or IgE, they need interactive assistance from T-lymphocytes. Numerous genetic flaws that impair this interaction between T-lymphocytes and B-lymphocytes cause HIGM.
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A less developed country with a rapidly expanding urban population is concerned that its growing urban population will eventually expand to a level where there would not be enough land to grow the food it needs to support its population.
(i) Excluding importing food, propose a solution to address the concerns of reduced land on which to grow food.
(ii) For your solution in (b)(i), explain an additional potential advantage of the solution.
Answers
Vertical farming is a solution to address the concern of reduced land for food production in a rapidly expanding urban population.
It involves cultivating crops in vertically stacked layers or on inclined surfaces, maximizing land efficiency. The additional advantage of vertical farming is its ability to produce food locally, reducing transportation needs and ensuring fresher produce. Furthermore, vertical farming enables year-round crop production in a controlled environment, reducing the impact of seasonal limitations and enhancing food security. Additionally, vertical farming promotes sustainable agriculture by minimizing water usage and pesticide needs.
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Can someone help me on dis
Answers
How does acid rain cause animals to suffer?
their habitats are destroyed by the severe weather rain can bring
animals can only find food in dry weather so they often go hungry during rain
O acid rain causes their to be less plants for animals to eat
acid rain is only a problem for humans
Answers
Acid rain harms numerous animals and plants. Thus, the food web suffers. Acid rain kills lake phytoplankton. As a result, phytoplankton-dependent insects die. Therefore, option (C) is correct.
What is acid rain?Acid rain, also known as acid deposition, is an all-encompassing word that refers to any form of precipitation that contains acidic components, such as sulfuric or nitric acid, and that falls to the ground from the atmosphere in either a wet or dry form. Acid precipitation can take several forms, such as rain, snow, fog, hail, or even dust.
Rain that contains acid can provide significant challenges for a wide variety of flora and fauna. As a direct consequence of this, the entire food web is disrupted. For instance, phytoplankton in lakes might perish as a direct result of acid rain. As a result of there being less phytoplankton available, the insects, which get their nutrition from it, are starting to starve to death.
Therefore, option (C) is correct.
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The White Blood Cell count is elevated, but the patient says that is normal for them. The blood count result belongs where?
As the CC
In the ROS
In the PE
In the Results Section
Answers
The answer to the given question is "In the Results Section."The result of White Blood Cell count is elevated, but the patient says that it is normal for them belongs in the Results Section.
What is the Results Section?The Results Section includes a description of all of the findings from lab tests, imaging tests, and any other diagnostic testing that the healthcare provider has requested. It is essential to identify any significant findings from each test to help explain the client's medical problem. As a result, the results area of the medical report is where the findings from the tests requested by the healthcare provider are presented.The Results section of a medical report includes a variety of information, such as the following:Patient’s test results All the test results in comparison to a normal range of resultsInterpretation of the results Patient’s current medicationPatient's vital signs.
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The numbers of organisms, at each trophies level, in a natural habitat remain more or less constant from year to year. Explain why this is so.
Answers
Predation: Both predator and prey species have balanced numbers, preventing any from becoming overly large and endangering the other.
Environmental factors: Variations in the environment, such as changes in temperature, precipitation, or sunlight, can have an impact on a species ability to survive and reproduce. The populations of creatures adapt and remain largely steady under a stable environment.
The overall number of species is largely maintained constant by this equilibrium. Competition can prevent a population from growing too large by limiting access to resources like food, water, and shelter.
Some species move to various environments in search of resources or to escape unpleasant circumstances. The movement of living things can support the balance of populations in various ecosystems.
Natural catastrophes: Natural catastrophes, like fires, floods, or earthquakes, can significantly affect populations of creatures. However, populations typically rebound and reach their baseline levels over time.
In conclusion, migration, competition for resources, environmental stability, predator-prey balance, and recovery from natural disasters all contribute to the stability of the population of species in a natural habitat from year to year.
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how should the neck be massaged in relation to the flow of blood? a. movements should follow the flow of the jugular veins downward. b. movements should follow the flow of the jugular veins upward. c. movements should move downward against the flow of the jugular veins. d. movements should flow upward against the flow of the jugular veins.
Answers
When massaging the neck, the movements should follow the flow of the jugular veins upward, option (b) is correct.
The jugular veins carry deoxygenated blood from the head back to the heart. By massaging in an upward direction, you can help facilitate blood circulation and lymphatic drainage in the neck area. This can aid in relieving tension, reducing swelling, and promoting relaxation. Gentle upward strokes or circular motions starting from the base of the neck and moving towards the jawline or behind the ears can be effective techniques.
It's important to apply gentle pressure and be cautious of sensitive areas such as the Adam's apple or any inflamed or injured areas. Consulting with a professional massage therapist or healthcare provider can provide further guidance tailored to your specific needs, option (b) is correct.
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The complete question is:
How should the neck be massaged in relation to the flow of blood?
a. movements should follow the flow of the jugular veins downward.
b. movements should follow the flow of the jugular veins upward.
c. movements should move downward against the flow of the jugular veins.
d. movements should flow upward against the flow of the jugular veins.
Blood is a connective tissue composed of red blood cells, white blood cells, and blood platelets. Why is it that we can see blood cells only with a microscope? Question 21 options: The cells form clumps.
The cells keep moving about.
The cells have different shapes.
The cells are very small in size.
Answers
The cells are very small in size.
That's what I would say.
On Galapagos islands with
sparse vegetation, how were
the tortoises adapted to this
environment?
A. They ate primarily soil.
B. They had shells that did not allow their
necks to move much at all.
C. They swam in the ocean to find food.
D. They had shells that allowed their
necks to extend.
Answers
What causes ocean water to be colder at the poles than at the equator
Answers
Answer:
Ocean currents warmed by the Sun's energy carry heat from the equator toward the poles as well. Evaporation of surface water, rain and other precipitation, wind and ocean currents move warm air toward the poles and bring cold air toward the equator.
Explanation:
the passage of the moon into earth’s shadow causes a
Answers
Explanation:
passage of the moon into earth’s shadow causes a
it causes an eclipse
choose the true statement(s) about animal respiratory systems. (select all that apply.) a. water breathers have to work harder to get oxygen because there is less oxygen in water than air and water is heavy. b. all animals have respiratory systems. c. unlike air-breathers, water-breathers tend to be the same temperature as their medium, because water has a higher thermal conductivity than air. d. water-breathers tend to have higher pco2 levels than air-breathers because it is more challenging for them to exchange gases.
Answers
The true statement(s) about animal respiratory systems are:
b. All animals have respiratory systems.
c. Unlike air-breathers, water-breathers tend to be the same temperature as their medium because water has a higher thermal conductivity than air.
d. Water-breathers tend to have higher pCO2 levels than air-breathers because it is more challenging for them to exchange gases.
What is respiratory system?The respiratory system is the biological system responsible for the exchange of gases between the body and the environment. Its main function is to supply the body with oxygen and remove carbon dioxide, a waste product of metabolism.
The respiratory system includes the lungs, airways, and respiratory muscles. The airways consist of the nose, pharynx, larynx, trachea, bronchi, and bronchioles, which transport air in and out of the lungs. The lungs are the main organs of respiration and are responsible for exchanging gases with the blood.
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3. People generally get tired at night. Which hormone is responsible for this tired feeling?
insulin
melatonin
glucagon
corticosteroid
Answers
Answer: Melatonin
Explanation:
Answer: Melatonin
Explanation: Melatonin is the hormone released by your brain to make you feel either sleepy at night time or awake during the day.
Read the following and then answer the questions: Jimena was quietly enjoying her lunch when an unexpected knock on the door startled her. She found two people in suits standing on her front porch. They explained they were medical scientists from Columbia University in New York, and they were visiting her to talk about some old blood samples from a transfusion she had back in the 1970s. They showed Jimena a consent form that she had signed. It had allowed scientists to store and study her blood to help advance their medical knowledge. Now she was worried. Did she have some terrible disease? She invited them in and sat down in case the news was bad. The researchers explained that they were part of a team that searches for viruses in old blood transfusion samples. Their work was aimed at finding new transfusion-transmissible viruses that ought to be screened for in the donated blood supply to further protect patients. They were looking at samples from the 1970s because, unlike today, the only virus screened for back then was Hepatitis B. These lightly screened samples might lead to discovery of previously unrecognized viruses. Sadly, lack of broader screening for bloodborne viruses meant that thousands of people were infected with Hepatitis C and human immunodeficiency virus (HIV) by way of contaminated blood transfusions during the 1970s and 1980s. People with hemophilia, a blood-clotting disorder, had an unusually high prevalence of Hepatitis C virus and HIV. This is because managing hemophilia in the 1970s and 1980s often involved administering clotting factors derived from human blood. Before the stricter screening went into effect, at least 6,000 hemophiliacs in the United States are believed to have contracted Hepatitis C from blood transfusions. Of course, hemophiliacs were not the only ones who suffered: Anyone who got a transfusion for any reason at that time was at high risk for exposure to these viruses. In 1976, during her last trimester of pregnancy, Jimena had developed severe anemia. She remembered receiving a blood transfusion a few weeks before she delivered her son, Jose. The transfusion was done to ensure that her blood levels could support both her and her child during delivery. She knew this must have been the reason the doctors were visiting her now. She asked them if they were here to tell her she had HIV or hepatitis––she had been feeling very tired lately, and wondered if this was the cause. The doctors hastened to explain that the blood she received was not infected with Hepatitis C or HIV. But they had found something else: a new virus never seen before in humans. They examined the medical records of all the people who had received blood with this virus, and it did not seem to cause disease. However, they wanted to investigate more. They were here to get a more detailed medical history from Jimena, along with a new blood sample. They also wanted to reach out to Jose, Jimena’s son, and see if he’d be willing to take part in the study, too. Jimena’s eyes became moist as she explained that Jose had died of cancer eight years ago. The doctors expressed their sympathy, but pressed Jimena for the type of cancer he had developed. She said it was liver cancer. "Are you sure we didn’t catch hepatitis C from the transfusion?" she asked the researchers. "I know that can cause liver cancer, right?" "Yes, it can," they replied.
1. How could old samples of donate blood be screened to search for new viruses?
3. How could researchers isolate and grow a particular virus from the Jimenas blood?
Answers
The researchers could isolate and grow a particular virus from Jimena's blood through the following procedure: The process of isolating and growing a particular virus from Jimena's blood is called virus cultivation.
Researchers begin by collecting a blood sample and treating it with a substance that ruptures the host cells while leaving the viral particles intact. After that, they transfer the suspension to a suitable host cell and incubate it. The host cell is used to propagate the virus. If the virus reproduces, it is allowed to infect the host cells. Then the infected cells are checked regularly to see how the virus is doing in the host cell. This enables the researchers to research the virus and take measures to protect people from being infected by it.
Researchers can isolate and grow a particular virus from Jimena's blood by following several steps. First, they would collect a blood sample from Jimena. Next, they would separate the blood components, such as plasma and red and white blood cells, to identify the presence of the virus. Once they have located the virus, they would extract it from the blood sample.
To grow the virus, researchers would then introduce it into a suitable cell culture or host organism, which provides the necessary environment for the virus to reproduce. They would monitor the growth of the virus and collect new viral particles as they are produced. Throughout this process, researchers would ensure the cell culture or host organism is kept under controlled conditions, such as temperature and humidity, to optimize viral replication.
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8. What drives surface ocean currents?
Answers
Answer:
Large-scale surface ocean currents are driven by global wind systems that are fueled by energy from the sun. These currents transfer heat from the tropics to the polar regions, influencing local and global climate.
Large-scale surface ocean currents are driven by global wind systems that are fueled by energy from the sun. These currents transfer heat from the tropics to the polar regions, influencing local and global climate.
And for my Hispanics
Las corrientes oceánicas superficiales a gran escala son impulsadas por sistemas eólicos globales alimentados por la energía del sol. Estas corrientes transfieren calor de los trópicos a las regiones polares, lo que influye en el clima local y global.
Parent 1 has type O blood. Parent 2 has type A blood (2 genotypes). They have 6 offspring, 3 of them have type A blood, and 3 of them have type O blood. What is the genotype of Parent 2?
Answers
Answer:
el sapo
Explanation:el sapo
what is not an effect of parathyroid hormone (pth)?what is not an effect of parathyroid hormone (pth)?increased absorption of calcium ions by the small intestineincreased osteoblast activityincreased reabsorption of calcium ions from fluid in the kidneysincreased release of calcium ions from bone
Answers
Increased osteoblast activity is not an effect of PTH. Osteoblasts are cells responsible for bone formation, and PTH stimulates osteoclasts, which are cells that break down bone tissue to release calcium into the bloodstream.
One of the primary functions of parathyroid hormone (PTH) is to regulate calcium levels in the body. PTH acts to increase the concentration of calcium ions in the bloodstream by promoting the release of calcium from bone tissue, increasing reabsorption of calcium ions from the kidneys, and enhancing absorption of calcium from the small intestine. However, increased osteoblast activity is not an effect of PTH. Osteoblasts are cells responsible for bone formation, and PTH stimulates osteoclasts, which are cells that break down bone tissue to release calcium into the bloodstream. While PTH can indirectly influence bone formation by regulating calcium levels, its primary role is to regulate calcium balance in the body by mobilizing calcium from bone tissue and increasing its reabsorption and absorption.
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GIVE TWO SIMILARITIES BETWEEN AN AQUATIC FOOD WEB AND A TERRESTRIAL FOOD WEB
Answers
Could you connect more than two hydrogen atoms together? Explain, again in terms of the
structure of the atoms and their shared parts, why or why not.
Answers
Two electrons can fit into or "hold" the outermost energy level for hydrogen. Outer energy atoms will continue to covalently connect. Covalent bonds between atoms and those in the H2 molecule can't form.
What is an atom?A negatively charged core nucleus and one or more circling electrons make up an atom. There may be the positive charge, somewhat massive particles and neutrons that make it up the nucleus. Atoms are the basic building blocks of stuff.
How are atoms created?13.7 billion years after the Big Bang, atoms were first formed. It was possible for quarks and electrons to develop as the hot, dense new cosmos cooled. Protons and neutrons were created by the combination of quarks, which then resulted in the formation of nuclei.
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Can someone please help and explain please?
Answers
Answer:
A
Explanation:
I guess so.
DNA nucleotides include
A thymine, guanine, uracil, and cytosine B thymine, uracil, adenine, and cytosine
C thymine, guanine, adenine, and cytosine
D thymine, guanine, adenine, and uracil
Answers
Answer:
C
Explanation:
It has 2 pairs
Adenine and Thymine
Cytosine - Guanine
hope it helps
Answer:
C. thymine, guanine, adenine, and cytosine
factors that affect the rate of osmosis
Answers
Answer:
1).pressure
2).temperature
3).surface area
4).water potential
5).concentration gradient
Identify at least one example each of absorption, transmission, reflection, and
refraction of waves in this photograph.
CLOSE
Answers
Answer:
human absorb 0oxygen =aborption ,reflection =the light that entered in the water,refraction =the light that pass outside the water
Answer:
Refraction = The divers head looks detached from his body.
Absorption = Some of the colours are being absorbed making the snorkel look yellow/greenish.
Reflection = The reflection of the sun, sky, sound and light.
Transmission = Light entering the water.
Explanation:
A boy is riding a bike. If there were NO friction between the tires and the ground and NO air resistance, the boy would:()
Answers
Answer:
Friction is what makes the bike move forward. If there was no friction between the bike's wheels and pavement, the tires would just spin in place and the energy you put into pedaling would not translate into forward motion. ... Likewise, you could not stop without the friction of the brakes and the tires.
Explanation:
people who take antibiotics are always told to complete the treatment rather than stop taking the medication when they feel better suggest two reasons why people are given this advice
Answers
Answer:
- Helps ensure that all of the illness-causing bacteria are killed or prevented from multiplying
- Helps prevent superbugs (bacteria that are immune to the antibiotic)
Answer:
it is to kill all the bacteria completely
and
to make sure that the person is completely healed because if the stop the treatment after a while the illness may come back with full force and this time to kill
Please help me I do not know what is the answer
Answers
Answer:both a and b
Explanation:
cellular respiration is the aerobic process by which living cells break down glucose molecules, release energy and form molecules of ATP which is energy.