MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Codominance

Case: Purebre...

Question

Case: Purebred shorthorn cattle of white coat (WW) were crossed with purebred cattle of red coat (RR). The $F_{1}$ cattle had coats with patches of white and red side by side.
What will be the genotypic ratis of $F_{2}$ generation?

A

1 : 1 : 2

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

1 : 2 : 1

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

2 : 1 : 1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

9 : 3 : 3 : 1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B 1 : 2 : 1
The $F_{2}$ generation is obtained by crossing the $F_{1}$ hybrids.

The $F_{2}$ generation will have 1 white, 2 roan and 1 red coat offsprings, with the genotypes WW (1), RW (2) and RR (1). Hence, the genotypic ratio is 1 : 2 : 1.

Suggest Corrections

thumbs-up

1

Similar questions

Q. Case: Purebred shorthorn cattle of white coat (WW) were crossed with purebred cattle of red coat (RR). The

F_{1}

cattle had coats with patches of white and red side by side.
What is the phenomenon responsible for this feature?

Q. Case: Purebred shorthorn cattle of white coat (WW) were crossed with purebred cattle of red coat (RR). The

F_{1}

cattle had coats with patches of white and red side by side.

But in certain condition, if a shorthorn cattle of white coat (WW) was crossed with a cattle of red coat (RR) resulted in all pink coated cattles. Then, what are the chances of the appearance of red coat in a cross between pink coated and white coated cattles?

Q. When homozygous red coat coloured and white coat coloured cattle were crossed, all the

F_{1}

progeny were of roan coat colour. By selfing of

F_{1}

Red, Roan, and White coat colour cattle are obtained in the ratio

Q. In shorthorn cattle, genes for red (R) and white (r) coat colour occur. Cross between red (RR) and white (rr) produces roan (Rr). This is an example of

Q. In some breeds of cattle, coat color is inherited through incomplete dominance. When two red-coated cattle are bred to one another, only red coated offspring result. When a red coated cow is mated to a white coated bull, roan (a lighter red/pink color) colored offspring result. What result would you expect from breeding two roan colored cattle?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Non Mendelian Inheritance

BIOLOGY

Watch in App

explore_more_icon

Explore more

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon