Which of the following is a component of

sperm?



a. DNA
b. enzymes
c. mRNA
d. yolk
e. all of these are components of sperm


A

Biology & Microbiology

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The poliomyelitis virus appears to selectively destroy

A. sensory nerve cells. B. mixed nerve cells. C. autonomic nerve cells. D. motor nerve cells.

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The top priority for energy allocation in animals is ____

a. maintenance metabolism b. growth c. reproduction d. storage

e. growth of sexually dimorphic features

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Recombinant vectors are often propagated in bacterial cells. Indicate whether the statement is true or false

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The movement of molecules from an area of high concentration to an area of lower concentration is called

A. endocytosis. B. diffusion. C. facilitated diffusion. D. active transport. E. osmosis.

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