Class 12BiologyPrinciples of Inheritance and VariationMix Examples- Principles of Inheritance and Variation
EasyDistinguish between: Polygenic inheritance and Multiple allelism.
(N/A) Polygenic Inheritance: This refers to a trait that is controlled by two or more genes,often resulting in a continuous range of phenotypes. Examples include human skin color and height.
Multiple Allelism: This refers to the presence of more than two alleles for a single gene locus within a population. While an individual carries only two alleles,the population exhibits multiple variations. $A$ classic example is the $ABO$ blood grouping system in humans.
Multiple Allelism: This refers to the presence of more than two alleles for a single gene locus within a population. While an individual carries only two alleles,the population exhibits multiple variations. $A$ classic example is the $ABO$ blood grouping system in humans.
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Similar Questions
$A$ 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
View SolutionIn sickle cell anaemia$-$
Medium
View Solution$A$ male human is heterozygous for autosomal genes $A$ and $B$ and is also hemizygous for the hemophilic gene $h$. What proportion of his sperms will be $abh$?
MediumAIPMT 2004
View SolutionMatch 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 |
Choose the correct answer from the options given below :
Medium
View SolutionBased on the statements, choose the correct option given below.
Statement-$I$: Allelic genes lead to individual differences within the species.
Statement-$II$: About $1000$ varieties of mangoes are found in India.
Statement-$I$: Allelic genes lead to individual differences within the species.
Statement-$II$: About $1000$ varieties of mangoes are found in India.
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