________ is the genetic material for all cellular organisms and some viruses.
A. Protein
B. DNA
C. Chromatin
D. RNA
Answer: B
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Which of the following is not a form of passive transport?
A. Facilitated diffusion B. Diffusion C. Osmosis D. All of the above are forms of passive transport
The theory of chromosomal inheritance was first proposed by
A. Mendel. B. Morgan. C. Knight. D. Sutton. E. Stern.
A particular flower can be purple, blue, red, or white. Two different pure-breeding white plants are crossed and the F1 are then crossed to produce an F2 generation. What might a 9:7 phenotypic ratio in the F2 indicate?
A) reciprocal recessive epistasis B) codominance C) dominant epistasis D) recessive lethality E) additivity
Which of the following are contained in
maternal milk?
a. lactose b. antibodies c. proteins d. digestive enzymes e. all of these are contained in maternal milk