Because a newly synthesized DNA molecule contains ____, the replication process is said to be semiconservative
a. two new strands
b. one parental strand and one new strand
c. two parental strands
d. half purines and half pyrimidines
e. nucleotide
b
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If you want to determine how the alleles of different loci interact in their various combinations, it is best to have a system where you do not have to worry about dominance and recessiveness
Which of the following would represent a system where you do not have to worry about dominance and recessiveness? A. Homo sapiens B. Garden peas C. Drosophila melanogaster D. Chlamydomonas reinhardtii
Because of the high requirement for reducing power in nitrogen fixation, the nitrogenase enzyme that carries out the reaction is very sensitive to the presence of ________.
A. oxygen B. carbon dioxide C. light D. None of the choices are correct.
The extracellular matrix of blood consists of ____
a. fibronectin b. elastin c. plasma d. basal lamina e. interstitial fluid
The cells surrounding milk-producing cells in the
female mammary gland contract shortly after the female hears the cry of an infant. This is an example of a. a response that is not a behavior. b. instinctive behavior. c. imprinting behavior. d. learned behavior. e. a time-dependent form of learning.