Question

Human embryo all the genetic instructions, it needed to become a male or female. The male foetus have a master gene which acts as a biological switch, turning other genes on and off. Loss of this gene results in female which remain sexually immature. This master gene is located on

A. Homologous part of X-chromosome
B. Non homologous part of X-chromosome
C. All the autosome
D. Y-chromosome  
Answer :   Y-chromosome

Releted MCQ Question on
Botany >> Principles of Inheritance and Variation

Releted Question 1

Experimental verification of the chromosomal theory of inheritance was done by

A. Sutton
B. Boveri
C. Morgan
D. Mendel
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Releted Question 2

Embryological support for evolution was disapproved by

A. Alfred Wallace
B. Charles Darwin
C. Oparin
D. Karl Ernst von Baer
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Releted Question 3

The production of gametes by the parents, the formation of zygotes, the $${F_1}$$ and $${F_2}$$ plants, can be understood using

A. Wenn diagram
B. Pie diagram
C. A pyramid diagram
D. Punnet square
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Releted Question 4

In a marriage between male with blood group $$A$$ and female with blood group $$B,$$ the progeny had either blood group $$AB$$ or $$B.$$ What could be the possible genotype of parents?

A. IA i (Male) ; IB i (Female)
B. IA i (Male) ; IB IB (Female)
C. IA IA (Male) ; IB IB (Female)
D. IA IA (Male) ; IB i (Female)
View Answer

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Principles of Inheritance and Variation

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BotanyThe Living WorldBiological ClassificationPlant KingdomMorphology of Flowering PlantsAnatomy of Flowering PlantsCell: The Unit of LifeCell Cycle and Cell DivisonTransport in PlantsMineral NutritionPhotosynthesis in Higher PlantsRespiration in PlantsPlant Growth and DevelopmentReproduction in OrganismsSexual Reproduction in Flowering PlantsPrinciples of Inheritance and VariationMolecular Basis of InheritanceStrategies for Enhancement in Food ProductionMicrobes in Human WelfareOrganisms and PopulationsEcosystemBiodiversity and ConservationEnvironmental IssuesBotany Miscellaneous
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