If corn #1 comes from a parental generation composed of homozygous purple kernels and homozygous yellow kernels then, the monohybrid cross will produce a generation that is heterozygous color purple dominant. If generation 1 is crossed with generation 1again, then the result will be dominant for the purple trait ¾ to ¼ in F2 generation. If corn # 2 comes from a parental generation composed of purely homozygous purple and smooth kernels and purely homozygous yellow and wrinkled kernels then a cross of the parental generation will cause alleles to segregate during gamete formation. The F1 generation will be heterozygous for both traits of color and texture. F1 crossed with itself will result in an F2 generation with mostly purple smooth kernels, some purple wrinkled, some yellow smooth and some yellow wrinkled.

Question

Fiona Clark

Biology

31 January, 14:49

If corn #1 comes from a parental generation composed of homozygous purple kernels and homozygous yellow kernels then, the monohybrid cross will produce a generation that is heterozygous color purple dominant. If generation 1 is crossed with generation 1again, then the result will be dominant for the purple trait ¾ to ¼ in F2 generation. If corn # 2 comes from a parental generation composed of purely homozygous purple and smooth kernels and purely homozygous yellow and wrinkled kernels then a cross of the parental generation will cause alleles to segregate during gamete formation. The F1 generation will be heterozygous for both traits of color and texture. F1 crossed with itself will result in an F2 generation with mostly purple smooth kernels, some purple wrinkled, some yellow smooth and some yellow wrinkled.

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Answers (1)

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Akira Stein · Answer 1

For corn#1 the punnet square can be shown as follows

p p

P Pp Pp

P Pp Pp

P p

P PP Pp

p Pp pp

The results from Corn # 1 and corn No #2 show that alleles assort independently into gametes. Due to this genetic variations occur.

Homozygous means that the alleles for a gene are similar. Heterozygous means that the alleles for a gene are different.

A dominant trait is the one in which the dominant allele suppresses the effect of the recessive allele. The recessive allele gets masked by the dominant allele.