Disadvantageous recessive alleles are protected from natural selection due to ____
a. homozygosity
b. diploidy
c. genetic drift
d. haploidy
e. adaptation
ANSWER: b
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The ________ experiments use an initial exposure to a radioactive compound in the mRNA followed by monitoring of the radioactive compound to determine its fate in the cell.
Fill in the blank(s) with the appropriate word(s).
If birds with larger beaks are favored by the environment, it is likely that ________ selection will occur
A) directional B) disruptive C) stabilizing D) standardizing
Cilia and flagella are both made of ________
A) actin B) tubulin C) intermediate proteins D) phospholipids
You perform an experiment by incubating a radiolabeled nucleotide into the medium of a culture of cells. The cells that take up the radiolabel would be expected to be in what phase of the cell cycle?
a. S phase b. G1 phase c. G2 phase d. M phase