Answer
405k+ views
Hint: Pleiotropy is defined as the special condition when one gene is responsible for controlling two distinct phenotype traits and these traits are unrelated to each other in all ways. Pleiotropy is seen in different genetic disorders in human beings.
Complete answer:
1.Haemophilia :- Haemophilia is the disease which is caused by the changes or mutation in the 12th chromosome of the human DNA, only a single gene is responsible for these diseases. It doesn't control any other function or phenotype in the human body.
2.Thalassemia :- it is a recessive inherited genetic disorder which is also a result of a number of small mutations in the beta globin chain. It didn't come across the Pleiotropy disorders. It reduces the oxygen carrying property of the blood.
3.Sickle cell anaemia :- sickle cell anaemia is an example of pleiotropic gene because here the mutation in the single gene carries out a number of changes throughout the body and affects the body in different ways. Here mutation occurs in only HBB genes.
4.Colour blindness :- colour blindness is a sex linked recessive inherited genetic disorder which is pass from the parents to the offspring. It is mainly transferred from the carrier mother to the son . The gene which is responsible for this is present on the 23rd chromosome.
Hence the correct answer is OPTION(C)
Note: In sickle cell anaemia the red blood cells lose their normal shape to sickle like shape and also break down of red blood cells can be seen in different cases.
Pain and fatigue are the symptoms for sickle cell anaemia.
Complete answer:
1.Haemophilia :- Haemophilia is the disease which is caused by the changes or mutation in the 12th chromosome of the human DNA, only a single gene is responsible for these diseases. It doesn't control any other function or phenotype in the human body.
2.Thalassemia :- it is a recessive inherited genetic disorder which is also a result of a number of small mutations in the beta globin chain. It didn't come across the Pleiotropy disorders. It reduces the oxygen carrying property of the blood.
3.Sickle cell anaemia :- sickle cell anaemia is an example of pleiotropic gene because here the mutation in the single gene carries out a number of changes throughout the body and affects the body in different ways. Here mutation occurs in only HBB genes.
4.Colour blindness :- colour blindness is a sex linked recessive inherited genetic disorder which is pass from the parents to the offspring. It is mainly transferred from the carrier mother to the son . The gene which is responsible for this is present on the 23rd chromosome.
Hence the correct answer is OPTION(C)
Note: In sickle cell anaemia the red blood cells lose their normal shape to sickle like shape and also break down of red blood cells can be seen in different cases.
Pain and fatigue are the symptoms for sickle cell anaemia.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Why Are Noble Gases NonReactive class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let X and Y be the sets of all positive divisors of class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x and y be 2 real numbers which satisfy the equations class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x 4log 2sqrt 9k 1 + 7 and y dfrac132log 2sqrt5 class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x22ax+b20 and x22bx+a20 be two equations Then the class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Write a letter to the principal requesting him to grant class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill in the blanks A 1 lakh ten thousand B 1 million class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)