Question

How is sickle cell anemia an example of a pleiotropy?

Answer 1

Hello @prettyhutts16 !
Do u know what pleiotropy is ?

Answer 2

no

Answer 3

Pleitropy is the condition when a single gene controls more than one characteristics

Answer 4

*pleiotropy

Answer 5

an example is phenylketoneurea

Answer 6

Now sickle cell anaemia controls two characteristics
1)shape of RBC
2Introduction of Malaria resistance

Answer 7

@shreehari499 can u explain how ?

Answer 8

ok thnk u now i know

Answer 9

Anytime @prettyhutts16 !

Answer 10

ok

Answer 11

In sickle cell anaemia one gene is muated..and the person gets the disease...
Due to this disease red blood cells have a weird shape...and they block blood vessels...
and since their blood cannot carry enough oxygen, the other parts of his/her body gets affected like heart, kidneys etc...so as @Abhisar told ONE gene here controls more than one characteristics...:)

Answer 12

about PKU i asked BTW

Answer 13

Phenylketonurea?

Answer 14

I agree what u told about Sickle cell, but introduction of malarial resistance is more important. Most of the people in africa are resistant to malaria cz of this disease !
SO it is considered a favourable mutation in there population and is naturally selected

Answer 15

Anyways...u were absolutly crrct about PKU also @shreehari499
Many phenotypic characters like mental retardation, eczema, and pigment defects in addition to that associated with disease are controlled by a single gene in PKU

Answer 16

yes u r ryt ! but i was tlkn about how PKU is pltrpc :)

Answer 17

Thnx @prettyhutts16 for the beautiful question !

Answer 18

Yeah..good qn! @prettyhutts16

Answer 19

u welcome

Answer 20

thnx u gys