The amount of new mutations in living organisms following a round of genome replication:
A. generally increases with larger genomes.
B. generally decreases with larger genomes.
C. is similar independent of genome size.
D. is highest in the bacteria.
E. None of the answer options is correct.
D
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The synthesis of a growing strand of DNA is carried out by adding nucleotides to the ___ end of an existing strand.
A. 2' B. 3' C. 5' D. 1'
The majority of all known animal species are:
A. flowering plants. B. cnidarians. C. vertebrates. D. insects.
The Dlx gene encodes a transcription factor that signals clusters of embryonic cells to ____ and gives rise to an
appendage. a. fold into the cardiac muscle b. protrude from the body c. form reproductive structures d. induce apoptosis in cells lining the appendages e. develop into the immune system
Refer to the accompanying figure. Nerves would be located in the part(s) labeled:a
2 only b. 3 only c. 4 only d. 2 and 3 e. 3 and 4