A test cross of an unknown yellow seed with a | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) In pea plants,yellow seed color $(Y)$ is dominant over green seed color $(y)$.Let the genotype of the unknown yellow seed be $Y?$.The green seed m

Vedclass · Accepted Answer

Heterozygous yellow

Vedclass · Answer

(B) In pea plants,yellow seed color $(Y)$ is dominant over green seed color $(y)$.Let the genotype of the unknown yellow seed be $Y?$.The green seed must have the genotype $yy$ because green is the recessive trait.The cross is $Y? 	imes yy$.If the unknown seed were homozygous yellow $(YY)$,the offspring would all be yellow $(Yy)$.Since the offspring are $50\%$ yellow $(Yy)$ and $50\%$ green $(yy)$,the unknown yellow seed must be heterozygous $(Yy)$.The cross is $Yy 	imes yy ightarrow 1 Yy : 1 yy$.

$A$ test cross of an unknown yellow seed with a green seed produces $50\%$ green seeds and $50\%$ yellow seeds. What is the genotype of the unknown yellow seed?

Similar Questions

The proportion of plants that were dwarf and tall,respectively,in the $F_2$-generation of Mendel's experiment was?

$A$ single heterozygous yellow wrinkled seeded pea plant shall produce gametes.

How does inheritance of one gene take place?

When different alleles of the same gene are present in an individual,the individual is a

If enough crosses are made between male flies of the genotype $Aa$ and female flies of the genotype $aa$ to produce about $1000$ offspring,which one of the following is the most likely distribution of genotypes in the offspring?

Vedclass Test Series

Exam Paper Generator

Online Exam Module