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Inheritance of Autosomal Recessive Disorders

In heterozygo...

Question

In heterozygous condition, both the alleles express in

A

Colour blindness

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B

AB blood group

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C

Rh factor

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D

A and B blood types

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Solution

The correct option is A AB blood group

expression of phenotypes of both parents in heterozygous condition is called codominance. Eg:ABO blood group, sickle cells anaemia, Seed coats of Lentil.
So, the correct option is ‘AB blood group’.

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Similar questions

Q. Identify the blood group allele(s) which do/does not express itself/themselves in heterozygous condition but express, when present in homozygous condition.

Q. Which is the type of allele that can express in both homozygous and heterozygous conditions?

Q. The allele which gets expressed in both homozygous and heterozygous condition is known as the ____________ allele.

Q. Assertion :ABO blood group system provides a good example of multiple alleles. Reason: In ABO blood group system, when /A and JB alleles are present together, they both express their own types.

Q. Human blood type is determined by codominant alleles. There are three different alleles, known as

I^{A}

I^{B}

I^{A}

I^{B}

alleles are co-dominant, and the i allele is recessive.
The possible human phenotypes for blood group are type A, type B, type AB, and type O. Type A and B individuals can be either homozygous (

I^{A} I^{A}

I^{B} I^{B}

, respectively), or heterozygous (

I^{A} i

I^{B} i

, respectively).
A woman with type A blood and a man with type B blood could potentially have offspring with which of the following blood types?

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Inheritance of Autosomal Recessive Disorders

Standard XII Biology

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