Which evolutionary force is likely responsible for the increased incidence of xeroderma pigmentosum (extreme sun sensitivity) in some Navajo peoples and describe how it came about.

Q: Give only typing answer with explanation and conclusion Identify the role of natural selection in…

A: The evolution of skin color in human populations is a fascinating subject that has been shaped by…

Q: Steven Frank and Laurence Hurst argued that a cytoplasmically inherited mutation in humans that has…

A: The mutation is the sudden deleterious effects in the DNA sequences, they can arise when the DNA is…

Q: Which statement is supported by experimental evidence on infant color vision?     a. Infants…

A: *It was proved that two month old infants are least dichromatic but there is no data whether they…

Q: Human populations living in countries in the northern latitudes, such as Finland, have a lighter…

A: Skin color is mainly due to pigment melanin. Melanin is present in both light and dark complexion…

Q: The primate residence pattern known as 'One female, multimale' is typical of some 'Platyrrhini'.…

A: Answer-- True Several unique morphological features (e.g., claws, prehensile tails) and uncommon…

Q: Suggest an explanation for why this behavior evolved(its ultimate causation).

A: Behavioral ecology is the study dealing with study of behavior at organismal level from molecular…

Q: Effect of geographic distance from Africa on human genetic diversity - Why do humans have a low…

A: Genetic Diversity is the diversity of genetic characteristics expressed or recessive within a…

Q: Where, when, and why were wolves domesticated, giving rise to dogs? Explain in detail.

A: The domestic dog's genetic separation from the wolf, domestication, and the appearance of the very…

Q: for 14. Everyone in Squidward's family has light blue skin, which is the dominant trait for body…

A: A Punnett square is an illustration of the potential genotypes of an offspring resulting from a…

Q: nfer how these changes occurred in the mice overtime. USE ALL THE INFORMATION FROM THE PICTURE FOR…

A: There are various causes for natural selection, which brings forth the evolution of the species.…

Q: When we are underwater for extended periods of time we see that our fingers and toes become wrinkled…

A: Dermatoglyphic are the ridges on our skin that leave finger and toe prints. Dermal papillae and…

Q: but why not polar bear

A: There are two types of living organisms categories based on their capability to regulate body…

Q: Why is skin cancer an unlikely trigger for the evolution of darker skin color?

A: Skin cancer can be described as the abnormal growth of skin cells. Skin cancer can be basal cell…

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: Hypothesize how the MITF (micropthalmia-associated trasnscription factor) gene might interact with…

A: The objective of this question is to hypothesize the interaction of the MITF gene with other genes…

Q: According to the video “The Biology of Skin Color”, how does UV exposure vary throughout the world?…

A: The question is asking about the variation in UV exposure across different parts of the world, as…

Q: True or false, humans evolved from chimpanzees? True or false, based on phylogenetic evidence, it…

A: Q. True or false, humans evolved from chimpanzees?   Q. True or false, based on phylogenetic…

Q: Write a conclusion for pig Xenotransplantation.

A: Conclusion : Genetically modified pigs have great promise for Xenotrasnplantation. consequently,…

Q: The skin pigment melanin is expressed differently according to exposure to sunlight, with a greater…

A: Phenotype is the expression of the gene and alleles present in an organism's genome. In most cases,…

Q: Tay–Sachs disease is a severe autosomal recessive genetic disease that produces deafness, blindness,…

A: Tay-Sachs disease is a neurodegenerative disease that is caused by the mutation of the gene HEXA…

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: There is no phylogenetic evidence for the gradual evolution of eye components. Eyes consist of…

A: Eyes are the photosensory organ that respond to light by forming a vision. It transmits the nerve…

Q: The so-called "Age of Discovery" during the 1400s-1700s when the superiority of European cultures…

A: The question is asking whether it is true or false that the 'Age of Discovery', a period from the…

Q: The distribution of epidermal melanin shows a remarkable diversity in human populations and, in this…

A: Pigmentation is determined by the type, amount and the distribution of melanin. Numerous genetic…

Q: What is the possible explanation for why so many Europeans have lighter skin?

A: Quantitative traits are controlled by more than one genes and are also influenced by the…

Q: To explain: one or more possible explanations for the slower rate of evolutionary change in the…

A: Organisms are classified as aerobic or anaerobic based on their reliance on oxygen. Biomolecules…

Q: Central African chimpanzees (Pan troglodytes troglodytes) and bonobos (Pan paniscus) are two…

A: Evolution can be defined as the change in the characteristics of a species over several generations…

Q: What factors caused the correlation between the reduction in skin pigmentation in humans and…

A: Environmental factor and genetic factor aswellas epigenetic factors are combinely controlling our…

Q: Over many generations, humans inherited thumbs to help us grasp onto objects. This trait that…

A: Evolution is the basis for development of complex features from simple features .

Q: Some strains of bees show hygienic behavior by uncapping cells con-taining larvae infected with a…

A: Insects are the most diverse group of animals belongs to class Insecta. They represent more than…

Q: 1. How does skin cancer not exert enough evolutionary pressure to account for darker skin in humans?…

A: The abnormal growth of skin cells.

Q: 2. How does folate deficiency exert enough evolutionary pressure to account for darker skin in…

A: An important type of Vitamin B, called folate is needed for the synthesis and repairing of nucleic…

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: dinosaurs that have a mutation that causes a decreased ability to withstand temperature changes dues…

A: The mutation is always desirable if it offers any sort of survival advantage. If the mutation…

Q: Types of homo sapiens

A: Homo is a genus that arose from the (now extinct) genus Australopithecines and includes the extant…

Q: In humans, pointed eyebrows are dominant over smooth eyebrows Mary's father ha T

A: Diploid organisms contain two copies of a gene (allele) in their chromosomes. If both the genes are…

Q: At least three hemoglobin alleles in human populations alterhemoglobin structure in such a way as to…

A: a sporozoan protozoan of the genus Plasmodium that is transmitted to humans or certain other mammals…

Q: 0. Based on what you know about skin pigmentation so far, suggest a mechanism by which UV intensity…

A: In evolution, the traits known as heritable traits, within a population provide a reproductive…

Q: Why do queen honey bees (Apis mellifera) behave very differently from their workers even though a…

A: The phenomenon of polyphenism exists in honey bee where more than two discrete phenotypes are…

Q: What social group behaviors (cultural adaptations) are inferred that may have been important factors…

A: Introduction:- Evolution is defined as the descent with modifications. Evolution leads to the…

Q: Summarize how natural selection is the mechanism that produced a global cline of skin color. Your…

A: Natural selection is the mechanism that produced a global cline of skin color. This variation in…

Q: Explain The way in which Hopi culture contributed to the high incidence of albinism among members of…

A: Albinism is a disease caused by a flaw in the enzyme responsible for the production of melanin (the…

Q: MCR1 the only gene responsible for the variation in the human skin color?

A: MCR1 (melanocortin 1 receptor)  gene is very well known to be associated with the variations found…

Q: What does the finding that the PTC taster polymorphism evolved independently in humans and…

A: Evolution is the process by which an organism inherits or adapts favorable characteristics that…

Q: We have spent a lot of time comparing channelrhodopsin (which is found in Chlamydomonas) with…

A: Rhodopsins are photoreceptive proteins with alpha-helices of seven transmembrane and a covalent…

Q: The scale on the bottom indicates the estimated timing of nodes (Mya = million yrs ago). Trioceros…

A: Introduction: Monophyletic is a Greek term which suggests organisms or species belonging to a single…

Q: Watch the film from time stamp 5:49 minutes to 9:08 minutes. Pause when Dr. Jablonski says, “That…

A: The driving force behind evolution is biological variation, which is crucial for individual survival…

Q: Genetics determine exactly who you are, agree or disagree with this statement.

A: Genetics is the scientific study of genes and heredity—how certain characteristics or…

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: