Under what circumstances would you expect sexual selection via mate preference to be absent?

a. Males invest more resources into reproduction than females.
b. Males and females contribute equally to brood care.
c. There is no additive genetic variance for mate quality.
d. There is no change in the environment.


C

Biology & Microbiology

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Which of the following statements is correct regarding chromosomes in a eukaryotic cell?

A. Chromosomes are strands of RNA, tightly wrapped up, that are in the cytoplasm. B. Chromosomes are strands of DNA, tightly wrapped up, that are located in the nucleus. C. Chromosomes are strands of RNA, loosely wrapped up, that are located everywhere in the cell. D. Chromosomes are strands of DNA, tightly wrapped up, that are located everywhere in the cell.

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The green arrow in the diagram above represents:

a) number of evolved characteristics. b) direction of stabilizing evolution. c) number of common ancestors. d) evolutionary advancement. e) time.

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How many nuclear divisions does meiosis utilize?

What will be an ideal response?

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Which of the follow produces a rash that leaves permanent scars on the skin?

A. Herpesviridae B. Papillomaviridae C. Poxviridae D. Adenoviridae E. Polyomaviridae

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