The diploid cell formed by the fertilization of the egg by the sperm during sexual reproduction is a
A) reciprocal.
B) zygote.
C) dihybrid.
D) gamete.
E) monohybrid.
B) zygote.
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To isolate anaerobic gram-positive organisms, which of the following media should be used?
a. Anaerobic blood agar b. Cycloserine cefoxitin fructose agar (CCFA) c. Laked kanamycin-vancomycin (LKV) blood agar d. Anaerobic phenylethyl alcohol agar (PEA)
Which of the following diseases is not caused by a mutation in a mitochondrial gene?
A. Leber's Inherited Optic Neuropathy (LHON) B. secretion of lactic acid into the bloodstream: neurogenic muscle weakness C. myoclonic epilepsy D. cardiomyopathy E. Turner syndrome
Which of the following would occur if excess sweating led to dehydration and high salt concentration in the bloodstream?
A. The hypothalamus would signal the kidneys to release more salt into the urine. B. The hypothalamus would signal the kidneys to absorb more salt from the urine. C. The liver would signal the kidneys to absorb more salt from the urine. D. The liver would signal the kidneys to release more salt from the urine. E. None of the answer choices is correct.
In the Hardy-Weinberg formula, what does p2 represent?
A) frequency of the dominant allele B) frequency of heterozygotes C) frequency of the recessive allele D) frequency of the homozygotes for one allele