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प्रश्न
What do sex linked traits appear in males than in females?
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उत्तर
Sex linked traits are more common in males and females this is because a recessive alleles in the X chromosome and producers the trait in the male.
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संबंधित प्रश्न
Identify ‘a’, ‘b’, ‘c’, ‘d’, ‘e’ and ‘f’ in the table given below:
| S. No. | Syndrome | Cause | Characteristics of affected individuals | Sex (male/female/both) |
| 1. | Down’s | Trisomy of 21 |
‘a’ |
‘b’ |
| 2. | ‘c’ | XXY | Overall masculine development | ‘d’ |
| 3. | Turner’s | 45 with XO |
‘e’ |
‘f’ |
In which of the following disorders number of chromosomes present is 47?
(A) Turner’s syndrome
(B) Cushing’s syndrome
(C) Acquired Immuno - Deficiency Syndrome
(D) Down’s syndrome
Very Short Answer Question.
Give an example of a chromosomal disorder caused due to nondisjunction of autosomes.
Match the column-I with column-II and re-write the matching pairs.
| Column-I | Column-II |
| 1. 21 trisomy | a. Turner’s syndrome |
| 2. X-monosomy | b. Klinefelter’s syndrome |
| 3. Holandric traits | c. Down's syndrome |
| 4. Feminized male | d. Hypertrichosis |
Give a detail account of thalassemia.
If a genetic disease is transferred from a phenotypically normal but carrier female to only some of the male progeny, the disease is ______.
In sickle cell anaemia glutamic acid is replaced by valine. Which one of the following triplets codes for valine?
Identify chromosomal disorder caused due to non-disjunction of the 21st number of chromosomes and enlist its symptoms.
Lipoprotein lipase deficiency (LPLD)is a genetic disorder in which a person has a defective gene for lipase. This leads to high triglycerides, stomach pain, and fat deposits under the skin. It may eventually affect the liver, pancreas and may also cause diabetes. The disorder occurs if a child acquires defective genes from both parents (autosomal recessive). ERT (enzyme replacement treatment) is one of the treatments offered to patients with LPLD.
-
- What procedure is followed in ERT?
- What could be one possible drawback of ERT?
- How can LPLD be treated using Biotechnology? Elaborate.
Give definition of non-disjunction.
