The connection that exists between genes and hereditary traits is based on using the information encoded in genes to synthesize
A. proteins.
B. codons.
C. nucleotides.
D. histones.
E. complementary bases.
Answer: A
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Life is defined in this text to be a process that extracts energy from the surroundings, maintains itself, and modifies the surroundings to promote its own survival
a. True b. False Indicate whether the statement is true or false
A key trait that distinguishes gnathostomes from other chordate lineages is the presence of
a. bony scales. b. claspers. c. jaws. d. the operculum. e. keratin.
You discover a flower that was a reduced calyx
and corolla, is drab in color and has no scent. This flower is likely pollinated by
a. a bee. b. a bat. c. a butterfly. d. a bird. e. wind.
Which of the following statements is TRUE?
a. Once a person reaches maturity, cell division stops except to repair wounds. b. Cell division in an adult signifies cancer. c. Select cells throughout the body retain the ability to divide and replace themselves. d. Growth continues throughout the life of an adult human.
e. All cells retain the ability to divide even after the organism reaches maturity.