A population that has experienced a genetic bottleneck and lost its genetic variability can never again attain substantial numbers.
a. true
b. false
Answer: b. false
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What will be an ideal response?
The main limitation of a drug that treats disease by altering chromatin remodeling is that
A) the changes would be passed on to daughter cells. B) it would change the number of copies of a gene that people inherit. C) it would change the expression of many other genes. D) the changes would be epigenetic.
One part of Darwin's theory is that individuals
with certain traits have an increased competitive edge. The source of these traits is a. adaptation to stress. b. development over a lifetime. c. inheritance. d. mutation after birth. e. all of these.
When a signaling molecule binds to a G protein linked receptor, the ligand-receptor complex
associates with GDP protein and causes GDP to be replaced by GTP. __________________ Indicate whether the statement is true or false.