SET 2: In corn, the following allelic pairs have been identified in chromosome 3: +/b plant color booster vs. non-booster +/lg with ligule vs. without ligule +/v green plant vs. virescent A test cross between triple recessive plants and plants heterozygous for the three pairs gave the following progeny: + v lg b + lg bv lg + + lg 305 148 58 bv + + + + 62 + v + 152 b + + 275 Total 1000 Calculate the parental and recombinant frequencies, the map distances between genes, and the coefficient of coincidence. Illustrate the gene map or sequence.

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A: The genes for seed color and seed shape assort independently According to the law of independent…

Q: In the fruit fly, vestigial wings and hairy body are produced by two recessive genes located on…

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Q: Inversions are known to affect crossing-over. The following homologs have the indicated order (the…

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Q: A cross in Drosophila melanogaster involved the recessive X-linked genes for white eye (w), yellow…

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Q: Females heterozygous for the recessive second chromosome mutations px, sp, and cn are mated to a…

A: Females heterozygous for the recessive second chromosome mutations px, sp, and cn are mated to a…

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Q: QUESTION 16 You have a pure breeding plant with red flowers, yellow seeds and red-veined leaves. You…

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Q: Explain why dead females are never found in the F1 generation no matter which parents are crossed.

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Q: Three recessive genes are linked on the third chromosome: g (gray), m (micro), and p (plum). The…

A: Parents- Parent 1= +gp=240 (the highest number)  Parent 2= m++=220 (complementary of parent 1)…

Q: What is the type of inheritance? What is known of the genotype of the male in the above cross? What…

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Q: The ABO blood type locus has been mapped on chromosome 9. A father who has type AB blood and a…

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Q: Drosophila may be monosomic for chromosome 4, yet remain fertile.Contrast the F1 and F2 results of…

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Q: From the three-factor crosses of Figure 7.3, Morgan realized thatcrossing over was more frequent…

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A:

Q: An individual that is homozygous AABBcc is crossed to an individual that is homozygous aabbCC…

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Q: . A three-point testcross was made in corn. The results and a recombination analysis are shown in…

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Q: Draw a Punnett square for the dihybrid cross. There are two known alleles of gene occupying a…

A: Dihybrid cross involves two genes in a cross. That's why the two traits are involved in this cross.

Q: Consider three genes on the same chromosome, Gene A, Gene B and Gene C. You perform three factor…

A: As 3 genes are located on the same chromosome then the crossing over event is very rare.

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Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.