Which of the following is a function of the nucleus?

A. stores DNA
B. stores sugars
C. builds proteins
D. packages proteins


Ans: A. stores DNA

Biology & Microbiology

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What activates CREB?

A. Binding of cAMP B. Phosphorylation C. Dimerization D. Lowering of cAMP concentration E. Binding to GRE

Biology & Microbiology

Which of the following is not a phenotypic method of identification?

A. Antibody response B. Gram stain reaction C. Morphology D. Endospore production E. Acid-fast reaction

Biology & Microbiology

A asset tube contains red blood cells and a salt solution. When the tube is held up to a page, you cannot see the print. with reference to a concentration of 0.9% sodium chloride (NaCL), how concentrated is the salt solution?

What will be an ideal response?

Biology & Microbiology

Why might traits such as skin color be fairly consistent within a racial group, but alleles for skin color aren't consistent?

A) There's no relationship between alleles and skin color. B) Skin color is influenced by many genes, so several different gene pools can produce the same skin color. C) Only one gene is important in skin color, and when analysis is limited to that gene, there's clear evidence of a long separation of groups. D) Few allele variations between groups are just what you would expect if races were genealogical species.

Biology & Microbiology