Approximately how much of the mammalian genome is composed of repetitive DNA?
What will be an ideal response?
About 5 percent to 10 percent of a mammalian genome is highly repetitive; about 30 percent is moderately repetitive.
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Rubisco is necessary for
a. capturing light energy. b. carbon cycling. c. producing chlorophyll. d. water absorption.
Which of the following is NOT an example of a mechanoreceptor?
A. Meissner's corpuscles B. Ruffini endings C. Merkel cells D. red corpuscles E. Pacinian corpuscles
Much has been learned about the relationship between genes and gene products through the use of the mold Neurospora. What specific attributes make Neurospora a good organism for such studies?
What will be an ideal response?
Which of the following statements concerning transcription in bacteria is FALSE?
A) It occurs in the nucleoid region. B) Sigma factors are parts of RNA polymerase that recognize promoter regions. C) Different RNA polymerases are required for synthesis of mRNA, rRNA, and tRNA. D) Termination is either self-induced or due to the presence of Rho protein. E) There are a variety of sigma factors that affect transcription.