Where is the majority of DNA located in a human cell?

a. nucleus
b. mitochondrion
c. chloroplast
d. ribosome


Answer: a. nucleus

Biology & Microbiology

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The lacA gene found within the lac operon encodes for galactosidase transacetylase. This enzyme attaches a(n) ________ group to lactose and lactose analogs.

A. amino B. hydroxyl C. carbonyl D. acetyl E. carboxyl

Biology & Microbiology

Describe why many systematists adopt the principle of parsimony

What will be an ideal response?

Biology & Microbiology

Where would you most likely find fossilized remains of humans and their immediate ancestors?

a. only in relatively old rock b. only in relatively young rock c. only in rock formed from volcanoes d. only in rock from the Precambrian times e. in any rock from areas inhabited by humans

Biology & Microbiology

Infection of the skin by Trichophyton rubrum results in raised red scaly patches of skin, a condition known as

A) dermatophytosis. B) candidiasis. C) mucormycosis. D) pityriasis. E) sporothrichosis.

Biology & Microbiology