Let S = smooth pea and s = wrinkled pea; Y = yellow pea and y = green pea. What are the different possible genotypes of the gametes produced by a plant that is heterozygous for both characters?
A) All will be SsYy.
B) S, s, Y, y
C) SY, sy
D) Ss, Yy
E) SY, Sy, sY, sy
Answer: E
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One of the most important uses of the Gram stain of expectorated sputum received for routine bacteriologic culture is to:
a. give the physician a quick analysis of the type of organism causing the infection. b. evaluate the quality of the specimen. c. distinguish between the possibilities of bacterial and viral sources of infection. d. begin appropriate antimicrobial therapy as soon as possible.
2n is an abbreviation for
A. diploid. B. gametes. C. haploid. D. mitosis. E. meiosis
Define the term speciation
What will be an ideal response?
If you removed a coleoptile tip, placed it on an agar block for a period of time, and then placed the
agar block to the side of the tip of a decapitated coleoptile, which of the following would happen next? a. The coleoptile would grow in a spiral pattern. b. The coleoptile would die. c. The coleoptile would not bend. d. The coleoptile would bend away from the side having the agar block. e. The coleoptile would bend toward the side having the agar block.