Zoology - Principles of Inheritance and Variation Question with Solution | TestHub
Given below are two statements :
Statement I :Down's syndrome is caused by the absence of one of the X-chromosomes.
Statement II :Turner's syndrome is caused by the presence of an additional copy of the chromosomes.
In the light of the above statements, choose thecorrectanswer from the options given below :NEET 2026 (Re-NEET)
Options:
Answer:
Solution:
Down's syndrome is an autosomal aneuploidy caused by the presence of an additional copy of chromosome number (Trisomy ). Therefore, Statement I is incorrect.
Turner's syndrome is a sex chromosomal aneuploidy caused by the absence of one of the X-chromosomes, resulting in a karyotype of with . Therefore, Statement II is also incorrect.
Both Statement I and Statement II are incorrect.
Answer: BothStatement IandStatement IIare incorrect
