You discover a gene that results in a complete lack of hair in rats, and you name the gene "chromedome." A cross of homozygous normal and homozygous bald rats results in all bald rats. You conclude that the baldness allele is dominant, but when you repeat the cross with different rats none of the offspring are bald. Extremely puzzled you study your records and discover that in the first cross the bald rat was female, while in the second cross the bald rat was male. What do you conclude from this information?
A. Chromedome is imprinted in females.
B. Chromedome is imprinted in males.
C. Chromedome is dominant in females and recessive in males.
D. Chromedome is dominant in males and recessive in females.
E. Chromedome is an X-linked gene.
B. Chromedome is imprinted in males.
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Which of the following does not occur during the erythrocytic stage of the malarial life cycle?
A. The parasite reproduces asexually via schizogony, producing merozoites. B. The parasites are protected from the host's immune response. C. The parasite reproduces sexually producing microgametocytes and macrogametocytes. D. Sporozoites are produced within erythrocytes and are released by the infected red blood cells.
Lactobacillus in the female reproductive tract
A. is the causative agent in common yeast infections. B. is protective. C. is indicative of underlying infection. D. can contribute to STIs. E. can lead to pelvic inflammatory disease.
The common house mouse species, Mus musculus, has the following classification: Musculus, Mus , Muridae, Rodentia, Mammalia, Chordata, Animalia, Eukarya. What part of the name is the family?
A. Rodentia B. Muridae C. Animalia D. Chordata
According to the positive-incentive perspective, the degree of hunger you feel at any particular time depends on the interactions of all of the factors that influence the positive-incentive value, such as:
What will be an ideal response?