Approximately what percent of the human genome codes for protein?
A) 75 percent
B) 12 percent
C) less than 2 percent
D) 21 percent
E) 97 percent
Answer: C
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The ability of bacteria to transfer DNA from one individual to another in the same generation is called ________
a. vertical gene transfer b. mitosis c. meiosis d. horizontal gene transfer e. binary fission
“Prebiotic soup” refers to
a. the interior contents of protocells. b. the cytoplasm of early prokaryotic cells. c. the mix of gases in the atmosphere that gave rise to the first organic molecules. d. the polymerized slime coating ancient clay particles. e. the accumulation of organic molecules that formed in the oceans before there was life on earth.
Microphylls is a structure that can only be found in:
a. ferns. b. liverworts. c. hornworts. d. club mosses. e. whisk ferns
Before it opens up into full blossom, the outer green layer of a rosebud consists of the leaflike
A) sepals. B) stamen. C) ovary. D) petals.