Zoology - Principles of Inheritance and Variation Question with Solution | TestHub
ZoologyPrinciples of Inheritance and VariationGenetic DisordersEasy2 minPYQ_2020
ZoologyEasysingle choice
In Mongolism, each cell has how many chromosomes
Options:
Answer:
D
Solution:
Instead of the usual 46 chromosomes present in each cell, it is observed that 47 chromosomes will be present in the cells of individuals with Down syndrome (Mongolism). Down’s syndrome is caused by the presence of an extra chromosome number 21 (autosomal trisomy).
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Principles of Inheritance and VariationSubtopic:Genetic Disorders
⏱ 2mℹ️ Source: PYQ_2020
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