What would be the hypothetical outcome if the action of RecA was inhibited during the SOS response?
A. LexA would autolyse, and therefore the transcription of DNA repair genes would occur.
B. LexA would not autolyse, and therefore the transcription of repair genes would occur.
C. LexA would autolyse, and therefore the transcription of repair genes would not occur.
D. LexA would not autolyse, and therefore the transcription of DNA repair genes would not occur.
Answer: D
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A researcher in a lab finds a microscopic organism that is a producer. The organisms are found in
extreme environments (i.e., hot springs). The researcher has identified an organism belonging to the domain ____.
a. Bacteria b. Archaea c. Eukarya d. Animalia e. Amoeba
The process of ________ has had a major impact on species distributions worldwide
A) continental drift B) comparative biochemistry C) genetic engineering D) divergent speciation E) adaptive mobility
Multiple sites of DNA replication along eukaryotic chromosomes are known as
A) replicons. B) multireplication forks. C) helicase loaders. D) ARS elements. E) None of these answers are correct.
The sex ratio
A. is typically 1:1 in species where both parents support the raising of young. B. is often dominated by males. C. is never greater than 1 female to 1 male. D. All of these conditions are true.