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4.Principles of Inheritance and Variation
medium
Phenyketonuria is a genetic disorder of
A
Trisomic condition
B
Monosomic condition
C
Autosomal dominant gene
D
Autosomal recessive gene
Solution
(d)Phenyketonuria $(PKU)$ was discovered by the Norwegian physician A. Folling in $1934$, an autosomal recessive mutation of gene on chromosome $12.$
Standard 12
Biology
Similar Questions
:Match the columns :
| Column $I$ |
Column $II$ |
| $(1)$ Albinism | $(p)$ recessive gene represented by HbsHbs. |
| $(2)$ Phenyl Ketonuria |
$(q)$ recessive gene represented by cc. |
| $(3)$ Sickle cell anaemia |
$(r)$ recessive gene represented by aa. |
| $4)$ Alkaptonuria | $(s)$ recessive gene represented by pp |
medium
:Match the columns :
| Column $I$ |
Column $II$ |
| $(a)$ Sickle cell anaemia | $(x)$ Homogentisic acid |
| $(b)$ Alkaptonuria | $(y)$ Melanin pigmentsare absent |
| $(c)$ Albinism | $(z)$ More amount of phenyl alanine |
| $(d)$ Phenyl Ketonuria | $(w)$ Defective haemoglobin |
easy
