A main chain scission involves the nucelotide bases of the DNA molecule.

a. true
b. false


Ans: b. false

Biology & Microbiology

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What would be the result for a patient if all his spermatogonia went through meiosis and proceeded to develop into spermatids? 

A. He would produce twice as many sperm and would be protected against infertility from other causes. B. He would produce twice as many sperm, which would crowd them during later development and lead to morphological defects. C. He would be entirely normal, since this is what usually happens. D. After one round of sperm production he would no longer be able to produce sperm and would be infertile.

Biology & Microbiology

Birds and reptiles save water by eliminating __________ rich wastes as uric acid crystals. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology

Which hormone prevents the corpus luteum from degenerating?

A. LH B. Progesterone C. Estrogen D. FSH E. hCG

Biology & Microbiology

How is the lateral line of a fish similar to the ears of a human? (Check all that apply.)A) Cilia embedded in a gelatinous matrixB) CochleaC) Hair cellsD) Large external structures for capturing pressure wavesE) Line of cells extends along length of the bodyF) Organ of CortiG) Pressure wavesH) Sensory neuronsJ) Several kinocilia and one stereociliumK) Several stereocilia and one kinocilium

What will be an ideal response?

Biology & Microbiology