Biology
A homozygous plant having round (R) and yellow (Y) seed is crossed with another homozygous plant having wrinkled (r) and green (y) seeds. Answer the following questions :
(a) Give the genotype of the F1 generation.
(b) Mention the phenotype of the F1 offsprings.
(c) Give the possible combinations of gametes that can be obtained from F1 hybrids.
(d) Give the dihybrid phenotypic ratio and the phenotype of the offsprings of the F2 generation when two plants of F1 generation are crossed.
(e) Name and state the law which explains the dihybrid phenotypic ratio.
Genetics
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Answer
(a) Genotype : RrYy
(b) All Round and yellow seeds
(c) RY, Ry, rY, ry
(d) 9:3:3:1
(e) Law of Independent Assortment, which states that the distribution of the alleles of one character into the gametes is independent of the distribution of the alleles of the other character.
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