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Q1. A rooster with particular comb morphology called walnut was crossed to a hen with a type of comb morphology known as single. The F1 progeny all had walnut combs. When F1 males and females were crossed to each other, 93 walnut and 11 single combs were seen among the F2 progeny, there were also 29 birds with a new kind of comb called rose and 32 birds with another new comb type called pea.
a. describe how comb morphology is inherited.
b. What progeny would result from crossing a homozygous rose-combed hen with a homozygous pea-combed rooster? What phenotypes and ratios would be seen in the F2 progeny?
c. A particular walnut rooster was crossed to a pea hen, and the progeny consisted of 12 walnut, 11 pea, 3 rose, and 4 single chickens. What are the probable genotypes of the parents?
d. A different walnut rooster was crossed to a rose hen, and all the progeny were walnut. What are the probable genotypes of the parents?
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If a double heterozygous plant were crossed with a plant that has green stems and red fruit, what offspring phenotypes would be expected and in what proportions.
Dozens of potato varieties exist, differing from each other in potato-tuber size, skin colour, flesh colour, and shape. One might construct a classification of potatoes based on these morphological traits. Which of these criticisms of such a classifi..
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Oceans receive materials from land primarily as runoff from rivers. Which of the statements is true regarding the materials and nutrients found in the oceans? Most elements that enter the oceans from other compartments remain suspended in the water.
The measurements to be comparable in both preparations. Illustrate one experiment you could perform to demonstrate such lack of equivalence of the two cells in the zygote. Noticeably state the expected outcome of your experiment in the reply you prov..
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