Maintenance of the uterine lining during pregnancy in mammals requires

A. LH.
B. estradiol.
C. FSH.
D. progesterone.
E. testosterone.


Answer: D

Biology & Microbiology

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When ATP energizes biochemical reactions, it transfers its ________ to the molecule being made more reactive

a. outermost phosphorous atom b. outermost phosphate group c. ribose d. adenine

Biology & Microbiology

Suppose that two strains of E. coli—strain a (bio- met- leu+ thr+ thi+) and strain b (bio+ met+ leu- thr- thi-)—conjugate. If the two strains are grown on minimal medium, what is the most likely genotype of their offspring?

a. bio+ met- leu- thr- thi+ b. bio+ met+ leu+ thr+ thi+ c. bio+ met+ leu- thr- thi+ d. bio- met- leu- thr- thi+

Biology & Microbiology

Which is true about the RNA transcript?

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Biology & Microbiology

What is one drawbacks to using pheromones for communication?

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Biology & Microbiology