Sickle cell anaemia is induced by [2001]a)change of amino acid in a-chain of haemoglobinb)change of amino acid in b-chain of haemoglobinc)change of amino acid in both a- and b-chain of haemoglobind)change of amino acid in either a- or b-chain of haemoglobinCorrect answer is option 'B'. Can you explain this answer?

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Sickle cell anaemia is induced by [2001]

a)
change of amino acid in a-chain of haemoglobin
b)
change of amino acid in b-chain of haemoglobin
c)
change of amino acid in both a- and b-chain of haemoglobin
d)
change of amino acid in either a- or b-chain of haemoglobin

Correct answer is option 'B'. Can you explain this answer?

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Sickle cell anaemia is induced by [2001]a)change of amino acid in a-ch...

Sickle cell anaemia is a hereditary disorder of autosomal nature caused by mutation of the gene controlling b-chain of haemoglobin. It involves substitution of glutamine by valine.

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Direction: Read the following text and answer the following questions on the basis of the same :Sickle cell anaemia is a genetic disorder where the body produces an abnormal haemoglobin called haemoglobins. Red blood cells are normally flexible and round, but when the haemoglobin is defective, blood cells take on a “sickle” or crescent shape. Sickle cell anaemia is caused by mutations in a gene called HBB.It is an inherited blood disorder that occurs if both the maternal and paternal copies of the HBB gene are defective. In other words, if an individual receives just one copy of the defective HBB gene, either from mother or father, then the individual has no sickle cell anaemia but has what is called “sickle cell trait”. People with sickle cell trait usually do not have any symptoms or problems but they can pass the mutated gene onto their children. Three inheritance scenarios can lead to a child having sickle cell anaemia :— Both parents have sickle cell trait— One parent has sickle cell anaemia and the other has sickle cell trait— Both parents have sickle cell anaemiaIf both parents have sickle cell trait, then there is _______________of the child having sickle cell anaemia.

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Direction: Read the following text and answer the following questions on the basis of the same :Sickle cell anaemia is a genetic disorder where the body produces an abnormal haemoglobin called haemoglobins. Red blood cells are normally flexible and round, but when the haemoglobin is defective, blood cells take on a “sickle” or crescent shape. Sickle cell anaemia is caused by mutations in a gene called HBB.It is an inherited blood disorder that occurs if both the maternal and paternal copies of the HBB gene are defective. In other words, if an individual receives just one copy of the defective HBB gene, either from mother or father, then the individual has no sickle cell anaemia but has what is called “sickle cell trait”. People with sickle cell trait usually do not have any symptoms or problems but they can pass the mutated gene onto their children. Three inheritance scenarios can lead to a child having sickle cell anaemia :— Both parents have sickle cell trait— One parent has sickle cell anaemia and the other has sickle cell trait— Both parents have sickle cell anaemiaIf both parents have sickle cell trait, then there is _______________of the child having sickle cell trait.

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Direction: Read the following text and answer the following questions on the basis of the same :Sickle cell anaemia is a genetic disorder where the body produces an abnormal haemoglobin called haemoglobins. Red blood cells are normally flexible and round, but when the haemoglobin is defective, blood cells take on a “sickle” or crescent shape. Sickle cell anaemia is caused by mutations in a gene called HBB.It is an inherited blood disorder that occurs if both the maternal and paternal copies of the HBB gene are defective. In other words, if an individual receives just one copy of the defective HBB gene, either from mother or father, then the individual has no sickle cell anaemia but has what is called “sickle cell trait”. People with sickle cell trait usually do not have any symptoms or problems but they can pass the mutated gene onto their children. Three inheritance scenarios can lead to a child having sickle cell anaemia :— Both parents have sickle cell trait— One parent has sickle cell anaemia and the other has sickle cell trait— Both parents have sickle cell anaemiaIf one parent has sickle cell anaemia and the other has sickle cell trait, there is that their children will have sickle cell anaemia and _will have sickle cell trait.

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Direction: Read the following text and answer the following questions on the basis of the same :Sickle cell anaemia is a genetic disorder where the body produces an abnormal haemoglobin called haemoglobins. Red blood cells are normally flexible and round, but when the haemoglobin is defective, blood cells take on a “sickle” or crescent shape. Sickle cell anaemia is caused by mutations in a gene called HBB.It is an inherited blood disorder that occurs if both the maternal and paternal copies of the HBB gene are defective. In other words, if an individual receives just one copy of the defective HBB gene, either from mother or father, then the individual has no sickle cell anaemia but has what is called “sickle cell trait”. People with sickle cell trait usually do not have any symptoms or problems but they can pass the mutated gene onto their children. Three inheritance scenarios can lead to a child having sickle cell anaemia :— Both parents have sickle cell trait— One parent has sickle cell anaemia and the other has sickle cell trait— Both parents have sickle cell anaemiaSickle cell anaemia is a/an ________________ disease.

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Direction: Read the following text and answer the following questions on the basis of the same :Sickle cell anaemia is a genetic disorder where the body produces an abnormal haemoglobin called haemoglobins. Red blood cells are normally flexible and round, but when the haemoglobin is defective, blood cells take on a “sickle” or crescent shape. Sickle cell anaemia is caused by mutations in a gene called HBB.It is an inherited blood disorder that occurs if both the maternal and paternal copies of the HBB gene are defective. In other words, if an individual receives just one copy of the defective HBB gene, either from mother or father, then the individual has no sickle cell anaemia but has what is called “sickle cell trait”. People with sickle cell trait usually do not have any symptoms or problems but they can pass the mutated gene onto their children. Three inheritance scenarios can lead to a child having sickle cell anaemia :— Both parents have sickle cell trait— One parent has sickle cell anaemia and the other has sickle cell trait— Both parents have sickle cell anaemiaThe following statements are drawn as conclusions from the above data (Keny

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Sickle cell anaemia is induced by [2001]a)change of amino acid in a-chain of haemoglobinb)change of amino acid in b-chain of haemoglobinc)change of amino acid in both a- and b-chain of haemoglobind)change of amino acid in either a- or b-chain of haemoglobinCorrect answer is option 'B'. Can you explain this answer?

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Sickle cell anaemia is induced by [2001]a)change of amino acid in a-chain of haemoglobinb)change of amino acid in b-chain of haemoglobinc)change of amino acid in both a- and b-chain of haemoglobind)change of amino acid in either a- or b-chain of haemoglobinCorrect answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Sickle cell anaemia is induced by [2001]a)change of amino acid in a-chain of haemoglobinb)change of amino acid in b-chain of haemoglobinc)change of amino acid in both a- and b-chain of haemoglobind)change of amino acid in either a- or b-chain of haemoglobinCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Sickle cell anaemia is induced by [2001]a)change of amino acid in a-chain of haemoglobinb)change of amino acid in b-chain of haemoglobinc)change of amino acid in both a- and b-chain of haemoglobind)change of amino acid in either a- or b-chain of haemoglobinCorrect answer is option 'B'. Can you explain this answer?.

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