Biology - Principles of Inheritance and Variation Question with Solution | TestHub
MatchList IwithList II
| List I (Genetic disorders) | List II (Type) |
|---|---|
| (A). Thalassemia | (I). X-monosomy |
| (B). Turner's syndrome | (II). Extra X-chromosome |
| (C). Klinefelter's syndrome | (III). 21 Trisomy |
| (D). Down's syndrome | (IV). Mendelian disorder |
Choose thecorrectanswer from the options given below:
Options:
Answer:
Solution:
Thalassemia is an autosomal recessive blood disorder, which is classified as a Mendelian disorder. Thus, (A) matches with (IV).
Turner's syndrome is caused by the absence of one of the X chromosomes, resulting in a karyotype of , X0, which is an X-monosomy. Thus, (B) matches with (I).
Klinefelter's syndrome is caused by the presence of an additional copy of the X-chromosome, resulting in a karyotype of , XXY. Thus, (C) matches with (II).
Down's syndrome is caused by the presence of an additional copy of chromosome number , known as Trisomy. Thus, (D) matches with (III).
The correct matching is (A) - (IV), (B) - (I), (C) - (II), (D) - (III).
Answer: (A) - (IV), (B) - (I), (C) - (II), (D) - (III)
