An embryo fish in its egg cannot survive outside the egg because it has underdeveloped tissues and organs needed for survival. The embryo has a large number of cells undergoing mitosis for the purpose of

A. fertilization of the gametes, so the embryo can continue growing and hatch.
B. asexual reproduction, to produce larger numbers of embryos, so that some will survive.
C. production of new cells that can differentiate and specialize for different functions.
D. replication of new DNA copies, so that meiosis will further grow the embryo.
E. sexual reproduction of gametes, to produce new offspring.


C. production of new cells that can differentiate and specialize for different functions.

Biology & Microbiology

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In a plant, most water is transported vertically by being pushed to the top. Indicate whether the statement is true or false

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A gene operon consists of

A) a transcribed gene only. B) a promoter only. C) a regulatory gene only. D) transcribed genes, an operator, and a promoter.

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A mycologist visits your biology class and discusses her research on a particular fungus that lives on the bark of damaged spruce trees. She explains that the fungal hyphae of her research organism is heterokaryotic. You raise your hand and request that she define that word. Her correct response is

A. heterokaryotic means that the nuclei of each compartment of the hyphae are genetically distinct. B. heterokaryotic means that each compartment of the hyphae contain two distinct nuclei. C. heterokaryotic means that each compartment of the hyphae contains only one nucleus. D. heterokaryotic means that the nuclei of the fungal hyphae are genetically the same.

Biology & Microbiology

How many Barr bodies would one expect to see in cells of Turner syndrome females and Klinefelter syndrome males?

What will be an ideal response?

Biology & Microbiology