The substrate(s) in the MR/VP medium is (are)
A. Peptones
B. Tryptophan
C. Glucose
D. Sucrose
E. Lactose
Ans: C. Glucose
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What does the term theory mean to a scientist?
A. A proposed explanation for an observed phenomenon B. A hypothesis that has been supported by a large number of experiments C. A hypothesis that has been supported by the evidence of one experiment D. A guess
Fruit develops from the
A. anther. B. ovary. C. stems. D. stigma. E. leaves.
In a certain breed of chicken, an incompletely dominant gene controls color. The homozygous black,
when crossed with the homozygous splashed-white, produces an intermediate gray color pattern called blue. A second gene controls the shape of the comb. The dominant allele (R) produces rose, while the recessive allele (r) produces single. Give the F1 and F2 genotypic and phenotypic ratios of a cross between a pure-breeding, black single and a pure-breeding, splashed-white rose. What will be an ideal response?
Amniotic fluid is produced by ____ and then reabsorbed by ____.
A. Amnion then Maternal Tissue; Fetal Swallowing B. Amnion then Maternal Tissue; Placenta C. Placenta; Fetal Epidermis D. Placenta; Fetal Swallowing E. Placenta; Placenta