Which of the following is NOT known to be a contributing factor to male infertility??


Ans: cystic ovaries

Biology & Microbiology

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Chlorophyll a appears green to the human eye because it ________

a. absorbs green light b. absorbs violet and red light c. reflects blue light d. reflects violet and red light

Biology & Microbiology

In eukaryotic cells, how can a single gene encode for more than one protein?

A. by using different codons B. by transcribing multiple copies of mRNA C. by removing different combinations of introns D. by using transgenes E. by mutating their genes

Biology & Microbiology

The removal of the ____ gland(s) will disrupt

normal blood clotting and muscle contraction. a. thymus b. thyroid c. pituitary d. parathyroid e. pancreas

Biology & Microbiology

Pseudocoelomates have a body cavity that is not completely lined with __________. These animals

include __________ and roundworms. a. endoderm; nemerteans b. endoderm; flatworms c. mesoderm; rotifers d. mesoderm; flatworms e. mesoderm; nemerteans

Biology & Microbiology