Class 12BiologyPrinciples of Inheritance and VariationMix Examples- Principles of Inheritance and Variation
EasyTjio and Levan's contribution is very significant because they
- AGave the correct number of human chromosomes
- BPointed out mutational changes
- CIdentified Barr bodies
- DDetected sex linkage
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Which of the following is genetically dominant in man?
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View SolutionWhen two genetic loci produce identical phenotypes in $cis$ as well as in $trans$ position,they are considered to be
DifficultAIPMT 1995
View SolutionVariation refers to .......
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View SolutionPick out the correct statements.
$I.$ Haemophilia is a sex-linked recessive disease
$II.$ Down's syndrome is due to aneuploidy
$III.$ Phenylketonuria is an autosomal dominant gene disorder
$IV.$ Phenylketonuria is an autosomal recessive gene disorder
$V.$ Sickle cell anaemia is an $X$-linked recessive gene disorder
$I.$ Haemophilia is a sex-linked recessive disease
$II.$ Down's syndrome is due to aneuploidy
$III.$ Phenylketonuria is an autosomal dominant gene disorder
$IV.$ Phenylketonuria is an autosomal recessive gene disorder
$V.$ Sickle cell anaemia is an $X$-linked recessive gene disorder
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View SolutionIf a daughter is affected by hemophilia,which of the following possibilities applies to her parents?
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