Mutation rates:
A. are higher in organisms with larger
genomes.
B. are similar across all organisms.
C. are highest in viruses.
D. are lower in organisms with larger
genomes.
E. are highest in the bacteria.
C
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Hfr transfer involves all of the following except
A. a pilus connection between F+ and F- cells. B. high frequency transfer. C. gene integration into the bacterial chromosome. D. F factor is part of the F+ donor chromosome. E. independent plasmid transfer.
Four genes (A, B, C, D) are in the same chromosome. The distance between A and B is 4 map units, between A and C is 6 map units, between A and D is 1 map unit, between B and C is 2 map units, and between B and D is 5 map units
The correct order of genes in the chromosome is: A. D, C, B, A B. C, B, A, D C. B, A, C, D D. A, B, C, D E. B, D, A, C
The Cambrian explosion refers to Earth's historical benchmark of life involving the
A. appearance of fossils for all major phyla of animals. B. origination of life, when the progenotes formed the first cells. C. All of the answer choices are correct. D. mass extinction of the nonavian dinosaurs. E. development of the first multicellular organisms.
Copies of chromosomes linked together at their centromeres at the beginning of meiosis are known as ____
a. mother chromosomes b. daughter chromosomes c. sister chromatids d. homologous chromatids e. analogous genes