13. In sesame plants, the one-pod condition (P) is dominant to the three-pod con
ID: 215061 • Letter: 1
Question
13. In sesame plants, the one-pod condition (P) is dominant to the three-pod condition (p) and normal leaf (L) is dominant to wrinkled leaf (). These traits are influenced by genes on different chromosomes and therefore inherited independently. Determine the genotypes for the two parent plants that produced the following offspring: vic a. 308 one-pod, normal / 98 one-pod, wrinkled b. 323 three-pod, normal / 106 three-pod, wrinkled c, 401 one-pod, normal d. 150 one-pod, normal /147 one-pod, wrinkled / 51 three-pod, normal / 48 three-pod, wrinkled e. 223 one-pod, normal / 72 one-pod, wrinkled/76 three-pod, normal /27 three-pod, wrinkledExplanation / Answer
ANSWER 13.
One-pod condition (P) is dominant over three-pod condition (p)
Normal leaf (L) is dominant over wrinkled leaf (l)
Answer a.
Since all progeny are one-pod, we can assign the parents a genotype of PP each to ensure this.
Since 3/4 progeny is normal and 1/4 progeny is wrinkled, assigning a genotype of Ll to each parent will ensure this ratio.
Hence, genotypes of the two parents are PPLl and PPLl
Answer b.
Since all progeny are three-pod, we can assign the parents a genotype of pp each to ensure this.
Since 3/4 progeny is normal and 1/4 progeny is wrinkled, assigning a genotype of Ll to each parent will ensure this ratio.
Hence, genotypes of the two parents are ppLl and ppLl
Answer c.
Since all progeny are one-pod and normal, we can assign the parents a genotype of PPLL each to ensure this.
Hence, genotypes of the two parents are PPLL and PPLL
Answer d.
Since 3/4 progeny are one-pod and 1/4 progeny is three-pod, we can assign the parents a genotype of Pp each to ensure this.
Since 1/2 progeny is normal and 1/2 progeny is wrinkled, assigning a genotype of Ll and ll to ensure this ratio.
Hence, genotypes of the two parents are PpLl and Ppll
Answer e.
Since 3/4 progeny are one-pod and 1/4 progeny is three-pod, we can assign the parents a genotype of Pp each to ensure this.
Since 3/4 progeny is normal and 1/4 progeny is wrinkled, assigning a genotype of Ll to each parent will ensure this ratio.
Hence, genotypes of the two parents are PpLl and PpLl
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