A silent mutation is a mutation that only occurs in noncoding regions of DNA
A. true
B. false
B
Biology & Microbiology
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Which of the following groups has the largest average number of chromosomes?
a. Bryophytes d. Gymnosperms b. Lycophytes e. Algae c. Angiosperms
Biology & Microbiology
Airways of the mammalian respiratory system function to
a. filter oxygen from carbon dioxide. b. moisten external air. c. cool external air. d. filter water out of the air. e. keep water out of the lungs.
Biology & Microbiology
A region of separation that forms near the base of the leaf's petiole when the leaf is shed is the
A. endosperm. B. abscission zone. C. Casparian strip. D. pericycle. E. statolith.
Biology & Microbiology
A deficiency of vitamin D causes
1.scurvy. 2.rickets. 3.kidney stones. 4.a goiter. 5.dwarfism.
Biology & Microbiology