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Byju's Answer
Standard IX
Biology
Sickle-Cell Anaemia
Allele for cy...
Question
Allele for cystic fibrosis occurs over
A
21
chromosome
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B
14
chromosome
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C
7
chromosome
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D
4
chromosome
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Solution
The correct option is
D
7
chromosome
Cystic fibrosis is caused by a mutation in the gene "cystic fibrosis transmembrane conductance regulator" (CFTR) which is present on chromosome 7.
So, the correct answer is '7 chromosome'.
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Similar questions
Q.
The gene for cystic fibrosis is located over chromosome
Q.
Match the human genetic disorder with the causative abnormal chomosome.
(a)
Sickle cell anaemia
1.
Sex linked (X-chromosome)
(b)
Colour blindness
2.
Autosomal chromosome 7
(c)
Phenylketonuria
3.
Autosomal chromosome 11
(d)
Cystic fibrosis
4.
Autosomal chromosome 4
(e)
Huntington's disease
5.
Autosomal chromosome 12
Q.
Match the human genetic disorders with the causative abnormal chromosomes.
List I
List II
A
Sickle cell anaemia
1
Sex linked (X chromosome)
B
Colour blindness
2
Autosomal chromosome 7
C
Phenylketonuria
3
Autosomal chromosome 11
D
Cystic fibrosis
4
Autosomal chromosome 4
E
Huntington's disease
5
Autosomal chromosome 12
Q.
Match the items in Column - I with Column - II and choose the correct alternative -
Column - I
Column - II
A. Sickle-cell anaemia
1.
7
t
h
chromosome
B. Phenylketonuria
2.
4
t
h
chromosome
C. Cystic fibrosis
3.
11
t
h
chromosome
D. Huntington's disease
4. X-chromosome
E. Colour blindness
5.
12
t
h
chromosome
Q.
Match the column.
a
Sickle cell anaemia
1
Sex-linked
b
Colour blindness
2
Autosomal
7
c
Phenyl ketonuria
3
Autosomal chromosome
11
d
Cystic fibrosis
4
Autosomal chromosome
4
e
Huntigton's chorea
5
Autosomal chromosome
12
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