What species did the HIV-1 genome evolve from?
a. Chimpanzees
b. Gorillas
c. Pigs
d. Spider monkey
e. Cows
a
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How would the hydrolysis of phosphodiester bonds impede the origin of life?
A. It would slow the rate of protein synthesis. B. It would prevent the assembly of nucleic acids. C. It would stop the formation of cell membranes. D. It would digest amino acids. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about the molecular basis of early life-forms? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Purple flower (A) is dominant over white flower (a), and tall stem (B) is dominant over short stem (b). The Punnett square
represents a cross between two dihybrids (AaBb ? AaBb). In the figure above, what would be the genotype of plant #9?
a. Aabb b. aaBb c. AaBB d. AABB e. aaBB
Based on Figure 53-4, which of the following age intervals has the highest death rate?
a. 0?1 b. 1?2 c. 2?3 d. 3?4 e. 4?5
Endosperm is usually triploid. Indicate whether the statement is true or false