Match List I with List II.
List I | List II | ||||||||||
A. | Sex-linked trait | 1. |
| Furrowed tongue with | broad palm | ||||||
Furrowed tongue with | |||||||||||
broad palm | |||||||||||
B. |
| Autosomal | recessive traits | 2. | Non-stop bleeding | ||||||
Autosomal | |||||||||||
recessive traits | |||||||||||
C. | 3. | Abnormal haemoglobin | |||||||||
D. |
| Chromosomal | disorder | 4. |
| Genotype of disease | sickle-cell anaemia | ||||
Chromosomal | |||||||||||
disorder | |||||||||||
Genotype of disease | |||||||||||
sickle-cell anaemia |
Choose the correct answer from the options given below .
A | B | C | D | |
(a) 2 | 3 | 4 | 1 | |
(b) 2 | 3 | 1 | 4 | |
(c) 1 | 4 | 3 | 2 | |
(d) 2 | 4 | 1 | 3 |
Text Solution
Verified by ExpertsA
The correct matches are A-2, B-3, C-4, D-1.
The trait linked with sex-chromosome is called sex-linked trait. Haemophilia are the example of sex-linked recessive trait. In this disease, a single proteins that is a part of the cascade of proteins involved in the clotting of blood is affected. Due to which a simple cut results in non-stop bleeding in affected individual.
Autosomal linked recessive trait includes sickle-cell anaemia , phenylketonuria, thalassemia, etc. In thalassemia which occurs due to mutation or deletion results into anaemia.
Out of the three possible genotypes for sickle cell anaemia 
, the individuals homozygous for 
, i.e. 
show discased phenotype.
Chromosomal disorder includes the Down's syndrome, Klinefelter's syndrome, Turner's syndrome, etc. In Down's syndrome the affected individual is short statured with furrowed tongue and broad palm.
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