There are approximately ___ light receptors in the human eye.
a. 126 million
b. 100 billion
c. 126 thousand
d. 12.6 million
a. 126 million
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Translation is the process by which:
A. proteins are synthesized from RNA molecules. B. RNA is synthesized from protein. C. proteins are synthesized from DNA molecules. D. RNA is synthesized from DNA. E. DNA is synthesized from protein.
You are working to characterize a novel protein in mice. Analysis shows that high levels of the primary transcript that codes for this protein are found in tissue from the brain, muscle, liver, and pancreas. However, an antibody that recognizes the C-terminal portion of the protein indicates that the protein is present in brain, muscle, and liver, but not in the pancreas. What is the most likely explanation for this result?
A. The transcript is immediately degraded in the pancreas. B. The transcript receives a 3' poly-A tail in the pancreas. C. The gene that codes for this protein is not transcribed in the pancreas. D. Alternative splicing in the pancreas creates a protein missing the domain that the antibody recognizes. E. The transcript receives a 5' cap in the pancreas.
Which of the following describes a reduction in genetic diversity when a new population is established by migrants?
A. Founder effect B. Genetic drift C. Inbreeding D. Gene flow E. Bottlenecks
Compromised hosts are always suffering from suppressed immune systems
Indicate whether the statement is true or false