What is the ultimate source of variability in offspring?
a. Okazaki fragments
b. DNA repairs
c. nucleosomes
d. mutations
Answer: d. mutations
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The products of genes that are switched on in
specific tissues at specific stages of development affect mainly a. gene replication. b. gene transcription. c. mRNA transcript processing. d. translation. e. post-translational processing of proteins
To form a blood clot, a series of plasma proteins must activate in a given sequence. If DNA info for one such protein mutates such that the resulting protein is nonfunctional, predict the consequence.
A. It depends on which protein is affected. B. Regardless of the protein involved, the clot would not form.
A 30-year-old woman was hospitalized after she experienced convulsions. On examination, she was alert and oriented and complained of a fever, headache, and stiff neck. Which of the following is most likely to provide rapid identification of the cause of her symptoms?
A) Gram stain of cerebrospinal fluid B) Gram stain of throat culture C) biopsy of brain tissue D) check serum antibodies E) None of these would provide rapid identification.
Arnold was involved in a major traffic accident, and some of the nerves in his spinal cord were cut. What are his chances for a full recovery? Please explain your answer
What will be an ideal response?