What source of genetic variation arises from a change in the DNA sequence of sex cells?

a. Mutation
b. Genetic recombination
c. Genetic diversity
d. Natural selection


Ans: a. Mutation

Biology & Microbiology

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A type of horizontal gene transfer in prokaryotes, in which a cell receives DNA from another cell through a sex pilus, is

A. replication. B. fixation. C. transduction. D. transformation. E. conjugation.

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Based on the figure above, which group of organisms is most closely related to members of the Kingdom Animalia?

A) Protista B) Fungi C) Plantae D) Bacteria E) Archaea

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The eyes of nocturnal predators are likely to have:

A. a higher concentration of rods than cones B. a higher concentration of cones than rods C. more bipolar cells than those animals that hunt during the day D. more ganglion cells than those animals that hunt during the day

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