Pure-breeding yellow guinea pigs crossed with pure-breeding white ones produce only cream-colored
offspring. This pattern indicates incomplete dominance. Rough hair is found to be dominant to smooth
hair. Give the F1 and F2 genotypic and phenotypic ratios of a cross of a smooth, white guinea pig with
a homozygous, rough, yellow guinea pig. What will be an ideal response?
F1: rough cream Yy Rr; F2: 3 YY R__ yellow rough, 6 Yy R__ cream rough, 3 yy R__ white rough, 1 YY
rr yellow smooth, 2 Yy rr cream smooth, 1 yy rr white smooth
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A neutral solution has a pH of
(a) 3. (b) 5. (c) 7. (d) 9.
Red blood cells contain 2% salt. What will happen when the cell is placed in a 10% salt solution?
a. The cell will burst. b. The cell will shrink. c. The cell will remain unchanged, but salt will diffuse out of the cell. d. The cell will remain unchanged, but salt will diffuse into the cell. e. The cell will remain unchanged, but water will diffuse out of the cell.
A chromosome’s gene sequence that was ABCDEFG
before modification and ABCDLMNOP afterward is an example of a. inversion. b. deletion. c. duplication. d. translocation. e. aneuploidy.
Treating a plant with a fungicide could interfere with the plant's uptake of nitrogen.
Answer the following statement true (T) or false (F)