Genetic recombination as a result of crossing
over occurs more readily in genes
a. that are on the sex chromosomes.
b. that are on the autosomes.
c. that are located close together on the same
chromosome.
d. that are located far apart on the same
chromosome.
e. that are located on different chromosomes.
D
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Which of the following is not true concerning the large intestine?
a. It is also called the colon. b. It harbors beneficial bacteria. c. It is involved with the absorption of sodium. d. It is involved with the absorption of water. e. It secretes digestive enzymes.
Monod discovered that if tryptophan is present in relatively high quantities in the growth medium, the enzymes necessary for its synthesis are repressed. How does this occur?
What will be an ideal response?
Approximately what percentage of adults in the US are hypertensive?
What will be an ideal response?
The membranes of cells are composed primarily of
A. oils. B. phospholipids. C. steroids. D. triglycerides. E. fats.