Genes on newly synthesized DNA molecules can be
blocked by the addition of __________ to the DNA.
a. –CH3
b. –CH3COc.
–NH2
d. –H2O
e. any of these
Answer: a
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A genetic _____ indicates the distances between gene loci measured in terms of the frequency of recombination.
A. map B. profile C. pedigree D. clone E. karyotype
Bone tissue is composed of ____ and ____ regions
a. spongy; muscular b. spongy; compact c. compact; diffuse d. aerobic; anaerobic e. red; white
Which types of cells are most likely to have high levels of methyl groups in their DNA?
a. embryonic cells b. blastocyst cells c. senescent cells (cells that are not actively dividing) d. apoptotic cells (cells that are undergoing cell death) e. rapidly dividing cells
Should we buy and eat food that comes from genetically modified plants and animals? Defend your answer based on
previous knowledge and on what you learned from this chapter. What will be an ideal response?