The enzyme Reverse Transcriptase is required for ___________ replication.
a) Human Papilloma Virus
b) Human Immunodeficiency Virus
c) Human influenza
d) Human Herpesvirus
Answer: b) Human Immunodeficiency Virus
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Which type of epithelium functions in diffusion?
a. simple squamous epithelium b. stratified squamous epithelium c. cuboidal epithelium d. simple columnar epithelium e. simple pseudostratified columnar epithelium
Transcription factors include
a. activators and repressors. b. repressors. c. activators, repressors, and enhancers. d. activators, repressors, and translational factors. e. enhancers and repressors
If a son expresses an X-linked recessive gene, he inherited the trait from ____
a. his mother b. his father c. both parents d. neither parent e. his grandmother
A Barr body
A. is an inactive Y chromosome that produces reduced amount of gene products. B. exists within the cell in the form of heterochromatin. C. exists within the cell in the form of euchromatin. D. is an inactive X chromosome that does not produce gene products. E. Two of the above answers are correct.