__________________________occurs when a trait has been repurposed during evolution.
Fill in the blank(s) with the appropriate word(s).
Exaptation
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The discontinuous aspect of replication of DNA in vivo is caused by ________
A) the 5' to 3' polarity restriction B) polymerase slippage C) sister-chromatid exchanges D) trinucleotide repeats E) topoisomerases cutting the DNA in a random fashion
If black and white true-breeding mice are mated and the result is all gray offspring, what inheritance pattern would this be indicative of?
a. Dominance. b. Codominance. c. Multiple alleles. d. Incomplete dominance.
Living diatoms contain brownish plastids. If global warming causes blooms of diatoms in the surface waters of Earth's oceans, how might this be harmful to the animals that build coral reefs?
A) The coral animals, which capture planktonic organisms, may be outcompeted by the diatoms. B) The coral animals' endosymbiotic dinoflagellates may get "shaded out" by the diatoms. C) The coral animals may die from overeating the plentiful diatoms with their cases of silica. D) The diatoms' photosynthetic output may over-oxygenate the water.
Crossing over occurs during ________ and is important because it ________
A) prophase I; generates variation B) metaphase I; reduces the chromosome number by half C) anaphase II; separates the homologous pairs D) telophase II; creates daughter cells