Which of the following is the correct
complementary bonding of nitrogen containing
bases in DNA?
a. adenine and cytosine.
b. adenine and guanine.
c. cytosine and thymine.
d. guanine and cytosine.
e. guanine and thymine.
D
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If your mother and father both are healthy but carry the allele for cystic fibrosis, which is caused by a recessive allele,
the odds of you inheriting at least one allele for the disorder are ____.
a. 1/4 b. 1/2 c. 3/4 d. 1 e. 0
Which of the following is NOT a parasitic
roundworm infection of humans? a. trichinosis b. pinworm c. schistosomiasis d. hookworm e. elephantiasis
Which of the following is considered to be a "clean" energy source?
A. geothermal energy B. burning coal C. nuclear power D. burning natural gas
Which of the following variations on translation would be most disadvantageous for a cell?
A) translating polypeptides directly from DNA B) using fewer kinds of tRNA C) having only one stop codon D) lengthening the half-life of mRNA E) having a second codon (besides AUG) as a start codon