Guinea pig having black colour when crossed with guinea pig having same colour prduced $100$ offspring out of which $75$ were black and $25$ were white. Now find out what is a possible genotype of the guinea pig.
(a) Which trait is dominant and which is recessive?
(b) what is this cross called as?
(c) What is the ratio of $F 2$ progeny obtained from this cross?

Open in App

Solution

Black black
Bb×Bb

Suggest Corrections

Similar questions

Q. Black coloured guinea pig (BB) is crossed with white coloured guinea pig (bb). Find out the ratio of the types of the offsprings produced in the

F_{2}

generation with the help of a checker board.

Q. In guinea pigs, black coat color is a dominant trait and white is a recessive trait. When heterozygous black pigs are intercrossed the chance of the first two offspring being black is:

Q. In guinea pig, black short hair (BBSS) is dominant over white long hair (bbss). In the dibybrid cross,

F_{2}

genotype BBSS, BbSS, BBSs and BbSs appear in the ratio of

In guinea pigs, the allele for short hair(H) is dominant. If all the guinea pigs are born short haired in F1, what are the possible genotypes of the male and female parents?

Q. Cross between homozygous black rough (BBRR) guinea pig and homozygous white smooth guinea pig (bbrr) produced black and rough animals in

F_{1}

generation. Presuming the genes to be present on different chromosomes, the percentage of

F_{2}

individuals which are heterozygous for both the gene pairs would be

Join BYJU'S Learning Program

Black blackBb×BbBb×Bb

Black black
Bb×Bb