184732
Which of the following is not an autosomal recessive trait?
1 Phenylketomuria
2 Cystic fibrosis
3 Albinism
4 Polydactyly
Explanation:
: Polydactyly is a condition in which a baby is born with one or more extra fingers. Cystic fibrosis phenylketonuria, sickle-cell anaenia, alkaptonuria, albinism etc are the examples of autosomal recessive ïsorders.
AMU-2001
Principle of Inheritance and Variation
184733
Which of the following disease occurs only in males?
1 Fabrys clisease
2 Gauchers disease
3 Lesch-Nyhan disease
4 Hunters disease
Explanation:
: Lesch-Nyhan disease (LNS) is a rare, inherited disorder caused by a deficiency of the enzyme hypoxanthine-guanine phosphoribosyl transferase (HPRT). LNS is an X-linked recessive disease carried by the female parent and passed on to a male child.
AMU-2002
Principle of Inheritance and Variation
184717
Number of Barr body which will found in case of Turner's syndrome will be:
1 1
2 2
3 0
4 Can't be determine by given data
Explanation:
: A Barr body is an inactive X-chromosome in a cell with more than one X - chromosome. It can be seen in the interphase nucleus. In the case of Turner's syndrome \(45(44+X)\), chromosomes are found. So the number of bodies will be zero. Barr body \(=n-1\), \(\mathrm{n}=\) No of X -chromosomes
JIPMER-2016
Principle of Inheritance and Variation
184763
Feminised males have \(\qquad\)
1 44
2 45
3 46
4 47
Explanation:
: In Klinefelter's syndrome, the chromosome tumber is 47 , phenotypically these individuals are males, but they may show some female secondary sexual characteristics and are usually sterile.
184732
Which of the following is not an autosomal recessive trait?
1 Phenylketomuria
2 Cystic fibrosis
3 Albinism
4 Polydactyly
Explanation:
: Polydactyly is a condition in which a baby is born with one or more extra fingers. Cystic fibrosis phenylketonuria, sickle-cell anaenia, alkaptonuria, albinism etc are the examples of autosomal recessive ïsorders.
AMU-2001
Principle of Inheritance and Variation
184733
Which of the following disease occurs only in males?
1 Fabrys clisease
2 Gauchers disease
3 Lesch-Nyhan disease
4 Hunters disease
Explanation:
: Lesch-Nyhan disease (LNS) is a rare, inherited disorder caused by a deficiency of the enzyme hypoxanthine-guanine phosphoribosyl transferase (HPRT). LNS is an X-linked recessive disease carried by the female parent and passed on to a male child.
AMU-2002
Principle of Inheritance and Variation
184717
Number of Barr body which will found in case of Turner's syndrome will be:
1 1
2 2
3 0
4 Can't be determine by given data
Explanation:
: A Barr body is an inactive X-chromosome in a cell with more than one X - chromosome. It can be seen in the interphase nucleus. In the case of Turner's syndrome \(45(44+X)\), chromosomes are found. So the number of bodies will be zero. Barr body \(=n-1\), \(\mathrm{n}=\) No of X -chromosomes
JIPMER-2016
Principle of Inheritance and Variation
184763
Feminised males have \(\qquad\)
1 44
2 45
3 46
4 47
Explanation:
: In Klinefelter's syndrome, the chromosome tumber is 47 , phenotypically these individuals are males, but they may show some female secondary sexual characteristics and are usually sterile.
184732
Which of the following is not an autosomal recessive trait?
1 Phenylketomuria
2 Cystic fibrosis
3 Albinism
4 Polydactyly
Explanation:
: Polydactyly is a condition in which a baby is born with one or more extra fingers. Cystic fibrosis phenylketonuria, sickle-cell anaenia, alkaptonuria, albinism etc are the examples of autosomal recessive ïsorders.
AMU-2001
Principle of Inheritance and Variation
184733
Which of the following disease occurs only in males?
1 Fabrys clisease
2 Gauchers disease
3 Lesch-Nyhan disease
4 Hunters disease
Explanation:
: Lesch-Nyhan disease (LNS) is a rare, inherited disorder caused by a deficiency of the enzyme hypoxanthine-guanine phosphoribosyl transferase (HPRT). LNS is an X-linked recessive disease carried by the female parent and passed on to a male child.
AMU-2002
Principle of Inheritance and Variation
184717
Number of Barr body which will found in case of Turner's syndrome will be:
1 1
2 2
3 0
4 Can't be determine by given data
Explanation:
: A Barr body is an inactive X-chromosome in a cell with more than one X - chromosome. It can be seen in the interphase nucleus. In the case of Turner's syndrome \(45(44+X)\), chromosomes are found. So the number of bodies will be zero. Barr body \(=n-1\), \(\mathrm{n}=\) No of X -chromosomes
JIPMER-2016
Principle of Inheritance and Variation
184763
Feminised males have \(\qquad\)
1 44
2 45
3 46
4 47
Explanation:
: In Klinefelter's syndrome, the chromosome tumber is 47 , phenotypically these individuals are males, but they may show some female secondary sexual characteristics and are usually sterile.
184732
Which of the following is not an autosomal recessive trait?
1 Phenylketomuria
2 Cystic fibrosis
3 Albinism
4 Polydactyly
Explanation:
: Polydactyly is a condition in which a baby is born with one or more extra fingers. Cystic fibrosis phenylketonuria, sickle-cell anaenia, alkaptonuria, albinism etc are the examples of autosomal recessive ïsorders.
AMU-2001
Principle of Inheritance and Variation
184733
Which of the following disease occurs only in males?
1 Fabrys clisease
2 Gauchers disease
3 Lesch-Nyhan disease
4 Hunters disease
Explanation:
: Lesch-Nyhan disease (LNS) is a rare, inherited disorder caused by a deficiency of the enzyme hypoxanthine-guanine phosphoribosyl transferase (HPRT). LNS is an X-linked recessive disease carried by the female parent and passed on to a male child.
AMU-2002
Principle of Inheritance and Variation
184717
Number of Barr body which will found in case of Turner's syndrome will be:
1 1
2 2
3 0
4 Can't be determine by given data
Explanation:
: A Barr body is an inactive X-chromosome in a cell with more than one X - chromosome. It can be seen in the interphase nucleus. In the case of Turner's syndrome \(45(44+X)\), chromosomes are found. So the number of bodies will be zero. Barr body \(=n-1\), \(\mathrm{n}=\) No of X -chromosomes
JIPMER-2016
Principle of Inheritance and Variation
184763
Feminised males have \(\qquad\)
1 44
2 45
3 46
4 47
Explanation:
: In Klinefelter's syndrome, the chromosome tumber is 47 , phenotypically these individuals are males, but they may show some female secondary sexual characteristics and are usually sterile.
