Direction Read the following and answer the questions from given below |
Many human diseases have genetic component. Some of these conditions are under investigation by researchers or associated with National Human Genome Research Institute (NHGRI). A genetic disorder is a disease caused in whole or in part by change in the DNA sequence away from the normal sequence. Genetic disorders can be caused by a mutations in one gene (monogenic disorder), by mutation in multiple genes (multifactorial inheritance disorder) or by a combination of gene mutations and environmental factors or by damage to chromosomes (changes in the number or structure of entire chromosomes, the structure that carry genes). |
(ii) Mendelian disorder may be of |
A) recessive
B) dominant
C) Both [a] and [b]
D) cannot be determined
Correct Answer: C
Solution :
[c] Mendelian disorder may be dominant or recessive type, e.g. haemophilia, colour blindness, sickle-cell anaemia, cystic fibrosis, phenylketonuria, thalassaemia. Thus, option [c] is correct.You need to login to perform this action.
You will be redirected in
3 sec