In the human male and female reproductive systems, each system contains paired primary sex organs called _____, which contain _____ cells that give rise to gametes.
A. testes; sperm
B. gonads; germ
C. ovaries; egg
D. bulbourethral glands; germ
E. All of the answer choices are correct.
B. gonads; germ
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Which viruses have single-stranded RNA that acts as a template for DNA synthesis?
A) lytic phages B) proviruses C) viroids D) bacteriophages E) retroviruses
The nucleotide that is present in RNA but not DNA is
A) thymine. B) uracil. C) adenine. D) cytosine. E) guanine.
Gene therapy to treat Leber congenital amaurosis has recently shown some promise in revitalizing the gene therapy field. This is due in large part to injecting adeno-associated virus loaded with RPE65 just under the retina. What does the product of gene
RPE65 do? A) metabolizes rod cell waste B) metabolizes retinal C) metabolizes cone cell waste D) metabolizes retinol
The __________, commonly referred to as the breastbone, is a flat bone formed by the fusion of three bones: the manubrium, the body, and the xiphoid process.
Fill in the blank(s) with the appropriate word(s).