If both parents are affected, due to the presence of one copy of the dominant allele responsible for the trait being studied, what are the odds that they would have a normal child?
a. 0
b. 25%
c. 50%
d. 75%
e. 100%
d
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Fraternal twins arise from
a. fertilization of two eggs by two sperm. b. fertilization of two eggs by one sperm. c. a split of the morula. d. a split of the blastomere. e. cleavage of the zygote.
Chromatin domains are loops of about _______ base pairs of DNA.
a. 1000 b. 10,000 c. 100,000 d. 1,000,000
Imagine that an RNA polymerase is transcribing a segment of DNA that contains the following sequence:
5?-AGTCTAGGCACTGA-3? 3?-TCAGATCCGTGACT-5? A. If the polymerase is transcribing from this segment of DNA from left to right, which strand (top or bottom) is the template? B. What will be the sequence of that RNA (be sure to label the 5? and 3? ends of your RNA molecule)?
________ is the carrier molecule required to transport peptidoglycan subunits to the location where they will be incorporated into the growing bacterial cell wall.
A. UDP glucose B. Malonyl-CoA C. Acyl carrier protein D. Bactoprenol