(A) Phenylketonuria is a genetic disorder caused by a mutation in the gene that codes for the enzyme phenylalanine hydroxylase. It is inherited as an

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(A) Phenylketonuria is a genetic disorder caused by a mutation in the gene that codes for the enzyme phenylalanine hydroxylase. It is inherited as an autosomal recessive trait. Blindness,cataract,and leprosy are generally not classified as genetic diseases in the context of Mendelian disorders.

Class 12 Biology Principles of Inheritance and Variation Pedigree Analysis and Mendelian disorders

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Which of the following is a genetic disease?

AIPMT 1990 All AIPMT

A
Phenylketonuria
B
Blindness
C
Cataract
D
Leprosy

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Principles of Inheritance and Variation

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Pedigree Analysis and Mendelian disorders

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Hereditary diseases constitute an important factor in checking the growth of population of a small community if:

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Red-green colour blindness appears due to

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Match the columns:

Column $I$ Column $II$

$(1)$ Albinism $(q)$ Recessive gene represented by $cc$

$(2)$ Phenylketonuria $(s)$ Recessive gene represented by $pp$

$(3)$ Sickle cell anaemia $(p)$ Recessive gene represented by $Hb^sHb^s$

$(4)$ Alkaptonuria $(r)$ Recessive gene represented by $aa$

Column $I$	Column $II$
$(1)$ Albinism	$(q)$ Recessive gene represented by $cc$
$(2)$ Phenylketonuria	$(s)$ Recessive gene represented by $pp$
$(3)$ Sickle cell anaemia	$(p)$ Recessive gene represented by $Hb^sHb^s$
$(4)$ Alkaptonuria	$(r)$ Recessive gene represented by $aa$

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Which of the following is a genetic disease?

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Among symbols $A, B$ and $C$,what does $C$ indicate?

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Hereditary diseases constitute an important factor in checking the growth of population of a small community if:

Red-green colour blindness appears due to

Match the columns: Column $I$ Column $II$ $(1)$ Albinism $(q)$ Recessive gene represented by $cc$ $(2)$ Phenylketonuria $(s)$ Recessive gene represented by $pp$ $(3)$ Sickle cell anaemia $(p)$ Recessive gene represented by $Hb^sHb^s$ $(4)$ Alkaptonuria $(r)$ Recessive gene represented by $aa$

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Match the columns:

Column $I$ Column $II$

$(1)$ Albinism $(q)$ Recessive gene represented by $cc$

$(2)$ Phenylketonuria $(s)$ Recessive gene represented by $pp$

$(3)$ Sickle cell anaemia $(p)$ Recessive gene represented by $Hb^sHb^s$

$(4)$ Alkaptonuria $(r)$ Recessive gene represented by $aa$