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Question
Name the disorder caused by under secretion of thyroxine in children
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Solution
Hyposecretion of thyroxine in children causes cretinism
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RELATED QUESTIONS
Given below is the representation of amino acid composition not the relevant translated portion of β-chain of haemoglobin, related to the shape of human red blood cells
(a) Is this representation indicating a normal human or a sufferer from certain related genetic disease? Give reason in support of your answer.
(b) What difference would be noticed in the phenotype of the normal and the sufferer related to this gene?
(c) Who are likely to suffer more from the defect related to the gene represented the males, the females or both males and females equally? And why?
About 8% of the human male population suffers from colour blindness, whereas only about 0.4% of the human female population suffers from this disease. Write an explanation to show how it is possible.
Give the importance of heterocyst in cyanobateria.
Give reasons for the development of Turner’s syndrome and also mention its symptoms.
Match the Column I and Column II and select the correct option.
| List-I | List-II | ||
| i. | Holandric genes | a. | Pleiotropy |
| ii. | Multiple effects of a single gene | b. | Hypertrichosis |
| iii. | Skin colour in man | c. | Multiple Alleles |
| iv. | ABO Blood types | d. | Polygenic inheritance |
The correct answer is
It is well known that Queen Victoria of England was a carrier for haemophilia. Since this is an X-linked disease, it can be predicted that ______.
Extra chromosome ‘X’ is present in which one of the following cases?
The technique exployed in human genetic counselling is:
Fused ear lobes appear in the progeny due to an autosomal recessive gene. Work out the genotypes of number in the given pedigree.
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.
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- What procedure is followed in ERT?
- What could be one possible drawback of ERT?
- How can LPLD be treated using Biotechnology? Elaborate.
