As a genetic counselor, you are constructing a human pedigree for a particular disease. You note that every generation shows the trait, suggesting that the trait is 

A. sex-linked.
B. recessive.
C. dominant.
D. polygenic.
E. pleiotropic.


C. dominant.

Biology & Microbiology

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Rats not resistant to the effects of warfarin do

not have enough of which of the following vitamins?

a. A b. B12 c. C d. E e. K

Biology & Microbiology

Tubular secretion occurs in the region labeled____

a. 1 only b. 2 only c. 3 d. 4 e. 1 and 2

Biology & Microbiology

The nitrogenous base found in RNA but not in DNA

is a. adenine. b. cytosine. c. guanine. d. uracil. e. thymine.

Biology & Microbiology

contains its own DNA and ribosomes

A. lysosome B. vacuole C. mitochondrion D. Golgi apparatus E. peroxisome

Biology & Microbiology