What population is NOT at risk for a zinc deficiency?
a. vegetarians
b. alcoholics
c. elderly
d. individuals eating a diet high in meat
Ans: d. individuals eating a diet high in meat
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Assume the trait for brown eyes is completely dominant to blue eyes and this trait is controlled by a single gene. If 400 people in a population of 10,000 have blue eyes, how many people would be expected to be heterozygous for this trait? (Hint: Use the Hardy-Weinberg formula.)
a. 8,000 b. 5,400 c. 3,200 d. 960 e. 320
Missense, nonsense, and silent mutations are all caused by single base changes in the coding region of a gene. How
are these three types of mutations different?
What will be an ideal response?How does a vesicle form from the cell membrane?
What will be an ideal response?
(a) In a three-point mapping experiment, which three general classes of offspring are expected (assuming crossovers occur)? (b) How many different genotypic classes are expected?
What will be an ideal response?