Which of the following is a disease caused by a pleiotropic gene?

a. sickle-cell anemia
b. pernicious anemia
c. aplastic anemia
d. iron deficiency anemia
e. hemolytic anemia


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Biology & Microbiology

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Fly species W, found in a certain part of the island, produces fertile offspring with species Y. Species W does not produce fertile offspring with species X or Z. If no other species can hybridize, then which of the following statements about species W

and Y are true? I) Species W and Y have genomes that are still similar enough for successful meiosis to occur in hybrid flies. II) Species W and Y have more genetic similarity with each other than either did with the other two species. III) Species W and Y may fuse into a single species if their hybrids remain fertile over the course of many generations. A) Only I is correct. B) Only II is correct. C) Only III is correct. D) I, II, and III are correct.

Biology & Microbiology

Which of the following adhesive molecules are found in animal tissues?

A. cadherins and integrins B. pectins C. cadherins D. integrins E. cadherins, integrins, and pectins

Biology & Microbiology

During rest which structure will act as a reservoir and hold the majority of the body's blood supply?

a. Arteries b. Liver c. Heart d. Spleen e. Veins

Biology & Microbiology

Assume that a dihybrid cross (AaBb × AaBb) is made in which the gene loci are autosomal, independently assorting, and incompletely dominant. What phenotypic ratio would you expect from such a cross? Just provide the ratio, not the phenotypes

What will be an ideal response?

Biology & Microbiology