Tertiary and quaternary structure of proteins involves ________ bonds

A) hydrogen
B) ionic
C) polar covalent
D) nonpolar covalent
E) ionic, hydrogen, polar, and nonpolar covalent


E

Biology & Microbiology

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DDT is an insecticide that kills a large spectrum of insects and causes the breakdown of reproductive fitness in birds. DDT accumulates in the food chain. Which of the four feeding guilds of birds has the highest proba-bility of extinction?

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If a population doubles in size, a deleterious allele should become less likely to drift to a higher frequency.

a. true b. false

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Explain what is meant by deamination. How does this mutation affect a cytosine (C) versus a methylcytosine (5meC)? What effect does deamination have on CpG islands, and how does that affect the mutation frequencies in these regions?

What will be an ideal response?

Biology & Microbiology