When does recombination of genes, as a result of crossing over, occur during the cell cycle?
a. prophase I
b. prophase II
c. metaphase I
d. metaphase II
a. prophase I
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A(n) ________ is a piece of DNA with all of the features necessary for chromosomal replication and which can carry large (up to 1000 kb) pieces of foreign DNA into a host organism.
What will be an ideal response?
How would this image be different if the individual were male?
1.There would be only one X chromosome.
2.There would be 24 pairs of chromosomes.
3.There would be three 21st chromosomes.
4.It would not be any different.
The distribution of highly competitive animals is
likely to be a. clumped. b. random. c. uniform. d. constant. e. homogeneous.
If a researcher uses the same experimental set-up as another study to collect data, but uses different research subjects, it is considered:
a. exploration. b. replication. c. extrapolation. d. inductive reasoning. e. a two-tailed test of the hypothesis.