Which describes Cystic fibrosis caused by a single mutation affects many organs?

a. Codominance
b. Pleiotropy
c. Epistasis
d. Incomplete dominanc
e. Multiple alleles


Ans: c. Epistasis

Biology & Microbiology

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As elevation increases

a. O2 availability increases. b. O2 availability decreases. c. O2 availability remains constant. d. O2 levels increase, but there is none present above 20,000 feet. e. O2 levels decrease, but there is none present above 20,000 feet.

Biology & Microbiology

An analysis of plasma or nuclear membrane

would yield

a. cellulose and chitin. b. suberin and cutin. c. phospholipids and proteins. d. microtubules and microfilaments. e. phospholipids and nucleic acids.

Biology & Microbiology

What are phagocytic leukocytes that attack parasitic cells by releasing toxic molecules once they have attached themselves to the parasite?

A) monocytes B) basophils C) eosinophils D) neutrophils E) macrophages

Biology & Microbiology

Which blood vessel will supply oxygenated blood directly to the femoral artery?

A. aorta B. inferior vena cava C. common iliac vein D. common iliac artery E. femoral vein

Biology & Microbiology