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L3A_ See the uploaded document and folow the instructions

Mendelian Genetics

The table representing the filial generations of the crosses between the parents having specified genetic traits as determined by the dominant and recessive alleles are given below . The table comprises of the genetic specification of the offspring as per genotype (specifying the allele distribution ) and phenotype (specifying the physical appearance

Scenario Number Genotype of Parent 1 Phenotype of Parent 1 Genotype of Parent 2 Phenotype of Parent 2 Ratio of Offspring Genotypes Ratio of Offspring Phenotypes 1 Gg

Grey

gg Black

1 :1 p

3 :1 2 LL

Long wing

ll Vestigial

NA (the offspring are similar in their genotype

NA (the offspring are similar in their phenotype 3 Gg

Grey

Gg

Grey

1 :2 :1

3 :1 4 Ll

Long wing

Ll Long wind

1 :2 :1

3 :1 5 LL

Long wing

Ll

Long wing

1 :1 NA (the offspring are similar in their phenotype )1 . For one of the monohybrid crosses you performed in this Investigation , describe how to use the phenotype ratios to determine the percentage of offspring displaying each trait

Ans : The cross involving only one contrasting character is known as monohybrid cross . The monohybrid cross , which has been performed in this investigation , has the phenotypic ratio of 3 :1 . That means in the experiment one and three the color of the 75 offspring will be grey and the remaining 25 will be black . In the experiments 2 , 4 , and 5 there will be 75 long wings and 25 short wings offspring . This is...

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