Q: Why are there so many marsupials in Australia but not in South America?
A: Australia is the kingdom of marsupials containing marsupials such as kangaroos, koalas and wombats.…
Q: Why do they look different? And why do they have different physical traits and phenotypes??
A: The DNA is the genetic material in living organisms that is made up of nucleotides. DNA is present…
Q: What most likely caused the variations in these finches?
A: Genetic variation within a population. The variation comes from mutations in the genome, reshuffling…
Q: How many bands are there for "20?" ? 1, 2, or 3?
A: The DNA fragments are loaded into a gel and placed in an electrical field, which electrophoretically…
Q: Do you think the allele for sickle cell anemia would be common in regions where malaria did not…
A: Sickle cell anemia is a recessive genetic disorder that occurs due to a mutation in the hemoglobin…
Q: So if skin color selection is not related to cancer, what accounts for the difference in skin color…
A: Introduction Skin Colour Is Influenced By A Number Of Factors. The Reddening Induced By…
Q: Why incidence of dark cutting beef is high during cold and hot temperatures
A: Dark-cutting is a stress related condition that is caused by the depletion of glycogen prior to…
Q: What do nude mice and humans with DiGeorge's syndrome have in common?
A: DiGeorge Syndrome is a primary immunodeficiency disease caused by aberrant tissue and cell migration…
Q: Identify 3 factors that influence the variation in human skin color.
A: Human skin colour is an adaptive, variable trait ranging from lighter to darker skin color. The…
Q: Siamese kittens that weigh more tend to have darker fur on their bodies. Why might this be?
A: Since dark colour absorbs all the heat and light, so extremities area of a cat, which gets cold…
Q: You are walking to school on a December morning. There is a thin layer of snow on the grass. As you…
A: An ecosystem is a natural community of living beings that deals with the external environment and…
Q: Why isn't race a meaningful concept, in terms of biology?
A: *In biology the taxonomy race which means informal rank in hierarchy * And also it is used to…
Q: According to your textbook, the trend related to lighter skin pigmentation further from the equator…
A: Organisms are open systems that maintain homeostasis, are composed of cells, have a life cycle,…
Q: What are the difference between Simpsons diversity index and Shannon diversity index and which is…
A: Biodiversity refers to the diversity of living things. It includes genetic, species, and ecosystem…
Q: Which of the following is an example of a hereditary disease stemming from a DNA mutation? O 1.…
A: HBB gene is responsible for encoding a protein called beta-globin that forms a component of…
Q: Why do people of European descent have a small portion of Neanderthal genes? Why don’t people of…
A: A gene is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the synthesis…
Q: It would be expected that a population geographically located where UV exposure is minimal to have a…
A: Introduction :- Sunburn can be caused by UV radiation from the sun or artificial sources such as…
Q: This illustration from an old textbook shows some of the over 150 different dog breeds that can be…
A: Breed is a specific group of domestic animals having homogeneous appearance, behaviour and other…
Q: How is the diversity in human skin color related to human environmental adaptation?
A: Human skin color variations are adaptive characteristics that are linked to geography and UV…
Q: Why is it true that the concept of "race" is not a scientific concept?
A: Race is refer to as a group of humans that categorized on the basis of various sets of heritable…
Q: What are the two selective pressures that lead to the pattern of skin color variation seen in…
A: Genetic variation is described as a change in the DNA sequence that distinguishes an individual's…
Q: Can Forensic DNA Analysis Help Save Elephants?
A: DNA fingerprinting in the field of DNA analysis has played a very crucial role in for the…
Q: The Inuit of Alaska and Canada have a remarkable ability to work in the cold without gloves and not…
A: The Inuit people who inhabit Canada and Alaska are able to operate in the cold without using gloves.…
Q: ividuals from northern latitudes? What role does darker pigmentation serve for individuals near the…
A: Pigmentation can be defined as the coloring of the skin.
Q: After graduation, she took a job as a bike messenger which forced her to spend many hours outside.…
A: When maria immigrated to the south Africa she cant tolerate the cold because she had been adopted to…
Q: How did human farming influence the evolution of the sickle cell allele in human populations?
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Q: How have the processes of domesticating creatures such as cats, cattle, chickensl, and fish remained…
A: Domestication means adaptation of animal which took longer time to undergo evolution.
Q: What factors affect the magnitude of change in allelic frequencies due to migration?
A: The allele frequency refers to the relative frequency of a particular allele at a locus. It is…
Q: Why do you suppose that the death from lung cancer has increased much more in women than in men over…
A: We are exposed to various forms of pollutants such as tobacco, gas, particles, pollution, and also…
Q: 1. How does skin cancer not exert enough evolutionary pressure to account for darker skin in humans?…
A: The sunlight that reaches an organism comprises two kinds of harmful rays that include long wave…
Q: If there isn’t such a thing as biological race, then why do certain diseases and conditions (like…
A: Tay-Sachs disease is a hereditary disorder that affects a small number of people. It occurs when a…
Q: Sixteen people are rescued from a raft adrift in the middle of the ocean. When tested, many of these…
A: The blood group varies significantly according to the regions in the world. Thus the ABO blood type…
Q: Why is it really uncommon to have brown eyes with red hair?
A: It is really uncommon to have brown eyes with red hair.Brown eye colour is one of the most common…
Q: Albinism occupied a special place in the Hopi culture; individuals who possessed this trait were…
A: Introduction Genes are the key components that control all the cell activities and also the basic…
Q: What is gene TLR1 role in humans?|Where does this gene show up in the genome (what chromosome is…
A: Toll like receptors (TLRs) are a class of pattern recognition receptors that function as a…
Q: During hurricanes Irma and Maria in 2017, some lizards on Pine Cay in the southern Bahamas got blown…
A: Natural selection is the process through which populations of living organisms adapt and change.…
Q: To which class sheep belongs and what are the main characters of thin tail breeds?
A: Sheep are one of the most common farm animals that is reared throughout the world. They are mainly…
Q: Chapter 1 considered the theory of the inheritance of acquired characteristics and noted that this…
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Q: Which came first, the chicken or the egg?
A: Eggs certainly came before chickens eggs as the shelled orbs laid by birds from which their chicks…
Q: What factors caused the correlation between the reduction in skin pigmentation in humans and…
A: The pigment-producing cells (melanocytes) synthesize a natural pigment (melanin) found throughout…
Q: Why is the color blindness gene still common in today's population?
A: Color blindness: It is a genetic disease caused due to mutations on the X-chromosome. color…
Q: What is the thrifty phenotype hypothesis? How does it help to explain the long-term effects of…
A: Gene is a functional unit of heredity. A gene is a sequence of nucleotides in genome that codes for…
Q: Can the effects of UV light on the folate explain the full variation of human skin color that exists…
A: Folic acid, known as folate in its natural form, is one of the B-group vitamins. It has several…
Q: Besides a mutation for red color, what other mutation occurred in the lizard population
A: Evolutionary fitness is defined as the success in the transfer of a gene from one generation to…
Q: How do we know that members of the human lineage used to have an opposable toe on their foot?
A: There was a fossil discovered some years back in Ethiopia which led us to draw a conclusion that…
Q: How many out of 16 have black hair and long ears? How many out of 16 have black hair and floppy…
A: Since in this question, the 2nd cross does not specify the phenotypic characters that is represented…
Q: Boxers are far more inbred than poodles. Why does that inbreeding make the former a better target…
A: Inbreeding is the breeding or mating of an individual or organism to a genetically closely related…
Q: Based on everything that you have learned so far, provide an explanation for how the different…
A: Evolution is a gradual change in the characteristics of a population of animals or plants over…
Quantitative traits are controlled by more than one genes and are also influenced by the environment.
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- Human populations living in countries in the northern latitudes, such as Finland, have a lighter complexion than people living in the tropical countries. What do you think is the reason for this difference?How did Hopi culture contribute to the high incidence of albinism among members of the Hopi tribe?How is the diversity in human skin color related to human environmental adaptation?
- What is the difference in the studied skin color gene between dark skinned and light skinned people?Why is it really uncommon to have brown eyes with red hair?So if skin color selection is not related to cancer, what accounts for the difference in skin color of different human populations? Meaning where is the selective pressure coming from to explain the differences in skin color?
- According to the video “The Biology of Skin Color”, how does skin color throughout the world match up with UV exposure? A. Lighter skin is usually found in high UV areas while darker skin is usually found in low UV areas B. Skin color throughout the world does not match up with UV exposure C. Darker skin is usually found in high UV areas while lighter skin is usually found in low UV areas D. UV rays are the same throughout the world, so there is no pattern or correlation with skin colorWhat is the evidence that the differences in skin color in populations around the world evolved by natural selection?In humans, having freckles is dominant to not having freckles. What is the genotype of a person without freckles?
