Which event could result in an inversion?

A) A 360° rotation of a chromosomal region following two double-strand breaks in a chromosome's DNA.
B) A crossover between two DNA sequences in different places on the same chromosome and that are inverted repeats of each other.
C) A crossover between two repeated DNA sequences that are in different places on the same chromosome and are oriented in the same direction.
D) A crossover between two repetitive sequences on different chromosomes.


B) A crossover between two DNA sequences in different places on the same chromosome and that are inverted repeats of each other.

Biology & Microbiology

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Epitokes of polychaetes are:

a. feeding structures. b. respiratory structures. c. reproductive individuals. d. excretory structures. e. feeding individuals.

Biology & Microbiology

The DNA sequence 5' ATGCCTGAATCAGCTTTA 3' could encode a maximum of ____ amino acids in a protein.

A) 5 B) 6 C) 7 D) 18

Biology & Microbiology

Transcription occurs ________ and translation occurs ________ of eukaryotic cells.

A) in the nucleus; in the cytoplasm B) in the cytoplasm; in the nucleus C) in the nucleus; at the cell membrane D) in the cytoplasm; at the cell membrane

Biology & Microbiology

When cells withdraw from the continuous cell cycle and enter a "quiescent" phase, which stage are they said to be in?

What will be an ideal response?

Biology & Microbiology