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

Biology & Microbiology

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Pseudocoel means “false body cavity.” Why is this term applied to the body cavity of roundworms?

What will be an ideal response?

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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.

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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.

Biology & Microbiology

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.

Biology & Microbiology