Bacterial conjugation is often referred to as bacterial sex. Why is this term inaccurate?
a. It does not require two cells to occur.
b. Sex is a phenomenon only seen in animals.
c. Conjugation does not result in the formation of new offspring.
d. Bacteria are neither male nor female.
Ans: c. Conjugation does not result in the formation of new offspring.
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The term weather differs from climate because
a. climate includes the barometric pressure, whereas weather does not. b. climate includes the dew point readings, whereas weather does not. c. climate includes both the barometric pressure and dew point readings, whereas weather does not. d. climate represents weather over time.
A proto-oncogene can become an oncogene when
A) it is translocated next to a highly expressed gene. B) it is translocated next to a gene that is not being expressed. C) checkpoints are added to the cell cycle. D) the cell cycle temporarily runs backwards.
What are the three components of a DNA nucleotide?
A. A phosphate, a base, and a polypeptide B. A sugar, a phosphate, and a peptide C. A sugar, a base, and a polypeptide D. A sugar, a phosphate and a base
Under the biological species concept, a species is a group of organisms that
A) are physically similar. B) share a recent common ancestor. C) live together in a location and carry out identical ecological roles. D) have the potential to interbreed in nature and produce fertile offspring.