The average pregnancy (measured from the last menstrual period) lasts for how many weeks?
A. 40
B. 36
C. 38
D. 32
E. 42
A
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Because of its larger size, the replication rate of eukaryotic genomes is significantly faster than the replication rate of prokaryotic genomes.
Answer the following statement true (T) or false (F)
Which of the following statements are true regarding heavy (H) chains? Select all correct choices
A. Antibodies contain two heavy chains. B. Heavy chains contain variable and constant regions. C. Heavy chains are formed by the recombination of V, J, and C gene segments. D. Heavy chains are formed by the recombination of V, J, C, and D gene segments. E. Heavy chains contain only a hypervariable region.
When red blood cells interact with tissue where the oxygen concentration is low, hemoglobin ____
a. releases oxygen b. releases carbon dioxide c. binds oxygen d. breaks down carbon dioxide e. releases both oxygen and carbon dioxide
What is an advantage to an organism producing microRNA?
A) microRNA causes mutations in unused genes. B) microRNA can protect against heart disease and cancer. C) microRNA can protect against viral infections. D) microRNA allows for the inactivation of Barr bodies.