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A: This is true that environmental factors can modify the gene expression, these environmental…
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A: INTRODUCTION: Phenocopy means change in the phenotype of the individual due to change in the…
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A:
Q: The basic units of information that encode the proteins needed to grow and function as a living…
A: the basic unit of information that encodes the proteins needed to grow and function as a living…
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A: INTRODUCTION Answer of question 1 part a and b is given below.
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- EVOLUTION LINK. In what ways does evolution depend on transfer of information? In what ways does transfer of information depend on evolution?Why are homologous traits similar? A. they result from genetic and developmental similarities. B. they are epigenetic effects. C. they are derived from a common ancestor D. they result from convergent evolution E. they result because the environmental conditions of the ancestors were similar.During a study session about evolution, one of your fellow students remarked “The giraffe stretched its neck while reaching for higher leaves; its offspring inherited longer necks as a result.” Which statement is MOST likely to be helpful in correcting this student’s misconception? Why? * No answer Disuse of an organ may lead to its eventual disappearance. Spontaneous mutations can result in the appearance of new traits. Only favorable adaptations have survival value. Characteristics acquired during an organism’s life are generally not passed on through genes.
- The fact that DNA sequences are more similar in more closely related organisms is evidence of what? a. optimal design in organisms b. adaptation c. mutation d. descent with modificationIs gene transfer a form of eugenics? Is it advantageous to use gene transfer to eliminate some genetic disorders? Can this and other technology be used to influence the evolution of our species? Should there be guidelines for the use of genetic technology to control its application to human evolution? Who should create and enforce these guidelines?EVOLUTION LINK Write short paragraphs explaining each of the following statements: (a) Natural selection chooses from among the individuals in a population those most suited to current environmental conditions. It does not guarantee survival under future conditions. (b) Individuals do not evolve, but populations do. (c) The organisms that exist today do so because their ancestors had traits that allowed them and their offspring to thrive. (d) At the molecular level, evolution can take place by the replacement of one nucleotide by another. (e) Evolution is said to have occurred within a population when measurable genetic changes are detected.
- INTERPRET DATA Which of the primates in Figure 18-18 is the most distantly related to humans? Explain your answer. Figure 18-18 Differences in DNA nucleotide sequences as evidence of evolutionary relationships Comparing the same gene in different organisms provides a window into evolution. Here the differences in the non-protein-coding region of the -globin gene are compared between humans and other primates. Evolutionary biologists are rapidly expanding such studies from comparing one or several genes to comparing entire genomes.EVOLUTION LINK What is the common ground between evolutionary biologists and developmental biologists who have adopted the perspective known as Evo Devo?The Evolutionary History and Spread of Our Species (Homo sapiens) a. Briefly describe the two major theories discussed in this chapter about the origin of modern humans. b. Which of these two theories would predict a closer relationship for the various modern human populations? c. Which of the two theories is best supported by the genetic evidence?
- Mutations cause variations among individuals. If these variations provide an advantage to individuals, then the resulting traits are known as adaptations. Which of the following statements about adaptations is incorrect? A. They are structural or physiological in nature. B. They modify the behaviour of organisms. C. They provide a selective advantage in any environment. D .They increase reproductive success of organisms.Evolution is often misunderstood and misinterpreted. What are some common misconceptions about evolution? How are these misconceptions wrong?Microtaxonomy ( Species and Speciation ) People who do not believe in evolution often cite the classic example of man presumably evolving from the apes. They oftern ask: if humans evolved from apes, why are there apes until today? How will you provide a convincing answer that there is no contradiction in the existence of apes and humans at the same time?
