(D) The correct answer is $D$. Sickle cell trait is a heterozygous condition in which an individual possesses one allele for normal haemoglobin $(Hb^A

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(D) The correct answer is $D$. Sickle cell trait is a heterozygous condition in which an individual possesses one allele for normal haemoglobin $(Hb^A)$ and one allele for sickle cell haemoglobin $(Hb^S)$. Individuals with this condition are typically asymptomatic carriers,as they produce enough normal haemoglobin to prevent the severe symptoms associated with sickle cell anaemia.

Class 12 Biology Principles of Inheritance and Variation Mix Examples- Principles of Inheritance and Variation

Medium

$A$ person may have one gene for normal haemoglobin and one gene for sickle cell haemoglobin. This heterozygous condition is called:

A
Genome
B
Anaemia
C
Gene trait
D
Sickle cell trait

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Chapter

Principles of Inheritance and Variation

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Mix Examples- Principles of Inheritance and Variation

The presence of four horns instead of two in a goat is an example of what?

Medium

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Match the following columns:

Column-$I$ Column-$II$

$A$. Mendel $i$. Allele

$B$. Bateson $ii$. Factors

$C$. Johannsen $iii$. Chromosome

$D$. Sutton and Boveri $iv$. Gene

Column-$I$	Column-$II$
$A$. Mendel	$i$. Allele
$B$. Bateson	$ii$. Factors
$C$. Johannsen	$iii$. Chromosome
$D$. Sutton and Boveri	$iv$. Gene

Medium

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In a dihybrid cross,when one pair of alleles shows incomplete dominance,the resulting genotypic ratio will be ....

Difficult

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Match List-$I$ with List-$II$ :

List-$I$ (Type of Inheritance) List-$II$ (Example)

$A$. Incomplete dominance $I$. Blood groups in human

$B$. Co-dominance $II$. Flower colour in Antirrhinum

$C$. Pleiotropy $III$. Skin colour in human

$D$. Polygenic inheritance $IV$. Phenylketonuria

Choose the correct answer from the options given below :

List-$I$ (Type of Inheritance)	List-$II$ (Example)
$A$. Incomplete dominance	$I$. Blood groups in human
$B$. Co-dominance	$II$. Flower colour in Antirrhinum
$C$. Pleiotropy	$III$. Skin colour in human
$D$. Polygenic inheritance	$IV$. Phenylketonuria

Medium

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$A$ human male is heterozygous for autosomal genes $A$ and $B$ and is also hemizygous for the $hemophilia$ gene. What proportion of his sperm will be $abh$?

DifficultAIPMT 2004

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$A$ person may have one gene for normal haemoglobin and one gene for sickle cell haemoglobin. This heterozygous condition is called:

Similar Questions

The presence of four horns instead of two in a goat is an example of what?

Match the following columns: Column-$I$ Column-$II$ $A$. Mendel $i$. Allele $B$. Bateson $ii$. Factors $C$. Johannsen $iii$. Chromosome $D$. Sutton and Boveri $iv$. Gene

In a dihybrid cross,when one pair of alleles shows incomplete dominance,the resulting genotypic ratio will be ....

$A$ human male is heterozygous for autosomal genes $A$ and $B$ and is also hemizygous for the $hemophilia$ gene. What proportion of his sperm will be $abh$?

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Exam Paper Generator

Online Exam Module

Match the following columns:

Column-$I$ Column-$II$

$A$. Mendel $i$. Allele

$B$. Bateson $ii$. Factors

$C$. Johannsen $iii$. Chromosome

$D$. Sutton and Boveri $iv$. Gene