Zoology - Principles of Inheritance and Variation Question with Solution | TestHub

ZoologyPrinciples of Inheritance and VariationGenetic DisordersEasy2 minPYQ_2020
ZoologyEasysingle choice

In which of the following chromosomal disorders do we observe the features like a long furrowed tongue and short stature?

Options:

Answer:
A
Solution:
Syndrome Chromosomal set up Features
1. Down’s Syndrome (first described by Langdon Down In 1866) Trisomy of Chromosome number 21 - Short statured with small round head. - Long and furrowed tongue. - Partially open mouth. - Physical, mental and psychomotor development retarded.
2. Klinefelter’s syndrome Trisomy of sex chromosome (44 + XXY) - Such males have some feminine features like gynaecomastia (development of breast), etc. - Sterile.
3. Turner’s syndrome Monosomy of sex chromosome (44 + XO) - Such females have rudimentary ovaries and lack other secondary sexual characters. - Sterile.
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Principles of Inheritance and VariationSubtopic:Genetic Disorders
⏱ 2mℹ️ Source: PYQ_2020

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