In the accompanying figure, which combination of letters accurately represents two sister chromatids?
a. A and B
b. A and C
c. A and D
d. A and E
e. B and F
b
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In watermelons, the gene for green color is dominant over its allele for striped color. At another gene locus, the gene for short shape is dominant over its allele for long shape. These two allele pairs assort independently. If a plant with long, striped fruit is crossed with a plant that is heterozygous for both of these traits, what percentage of the offspring do you expect will be short and green? ( Enter the number only without the percent sign. For example, enter 100% as 100 and enter 12.5% as 12.5 )
What will be an ideal response? Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain? Gather Content · What do you already know about two-gene crosses and independent assortment? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The photosynthetic pigments of Heliobacterium and Heliophilum
A. are in separate membrane structures attached to the plasma membrane. B. are in separate structures and also in the plasma membrane. C. are in the plasma membrane and not in separate structures. D. are in separate membrane structures that are not attached to the plasma membrane.
Birds are different from all other living vertebrates because they
A. can fly. B. lack teeth. C. have feathers. D. are bipedal.
Of the five aspects of Hardy-Weinberg equilibrium, which one directly affects phenotypic frequencies for both rather than genotypic frequencies?
What will be an ideal response?