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Principle of Inheritance and Variation

184730 What ratio is expected in offsprings if father is colour blind and Mother-Father was colour blind

1

50 %

daughter - colour blind

2 All the sons are colour blind

3 All the daughters colour blind

4 All the sons are normal
APMT-1999

Explanation:

: If father is colour blind and mother's father was colour blind then $50 %$ daughter is colour blind.
| | $X^{c}$ | X |
| :---: | :--- | :--- |
| $X^{c}$ | $X^{c} X^{c}$
colour blind girl | $X^{c} X$
carrier |
| Y | $X^{c} Y$ boy
colour blind | XY
normal |

Principle of Inheritance and Variation

184734 A woman with albinic father marries an albinic man. The proportion of her progeny is

1 2 normal: 1 albinic

2 All normal

3 All albinic

4 1 normal: 1 albinic

Explanation:

: The women is heterozygous as albinic concitions is recessive hence when she marries an albinic man, the offspring are $50 %$ normal and $50 %$ albinc. The women is a carrier as it is a heterozygous condition.
$\underset{Women}{Father is albicic (} x y$ ) so woman is heterozygous (Xx).

Rajasthan PMT-2011

Principle of Inheritance and Variation

184735 Absence of teeth, bifid tongue and mental retardness are observed in

1 Down's syndrome

2 Albinism

3 Klinefelter's syndrome

4 Oral-facial-tigital syndrome

NEET-2018

Principle of Inheritance and Variation

184742 Match Column I with Column II and find the correct answer:
Column I Column II
1. Aneuploidy p. Increase in whole set of chromosomes
2. Monoploidy q. Loss of gain of a chromosome
3. Polyploidy r. Two sets of chromosomes
4. Dipleidy s. A single set of chromosomes

1

1 - p, 2 - q, 3 - 1, 4 - 8

2

1 - t, 2 - p, 3 - q, 4 - s

3

1 - q, 2 - s, 3 - p, 4 - r

4

1 - s, 2 - t, 3 - p, 4 - q

Principle of Inheritance and Variation

184730 What ratio is expected in offsprings if father is colour blind and Mother-Father was colour blind

1

50 %

daughter - colour blind

2 All the sons are colour blind

3 All the daughters colour blind

4 All the sons are normal
APMT-1999

Explanation:

: If father is colour blind and mother's father was colour blind then $50 %$ daughter is colour blind.
| | $X^{c}$ | X |
| :---: | :--- | :--- |
| $X^{c}$ | $X^{c} X^{c}$
colour blind girl | $X^{c} X$
carrier |
| Y | $X^{c} Y$ boy
colour blind | XY
normal |

Principle of Inheritance and Variation

184734 A woman with albinic father marries an albinic man. The proportion of her progeny is

1 2 normal: 1 albinic

2 All normal

3 All albinic

4 1 normal: 1 albinic

Explanation:

: The women is heterozygous as albinic concitions is recessive hence when she marries an albinic man, the offspring are $50 %$ normal and $50 %$ albinc. The women is a carrier as it is a heterozygous condition.
$\underset{Women}{Father is albicic (} x y$ ) so woman is heterozygous (Xx).

Rajasthan PMT-2011

Principle of Inheritance and Variation

184735 Absence of teeth, bifid tongue and mental retardness are observed in

1 Down's syndrome

2 Albinism

3 Klinefelter's syndrome

4 Oral-facial-tigital syndrome

NEET-2018

Principle of Inheritance and Variation

184742 Match Column I with Column II and find the correct answer:
Column I Column II
1. Aneuploidy p. Increase in whole set of chromosomes
2. Monoploidy q. Loss of gain of a chromosome
3. Polyploidy r. Two sets of chromosomes
4. Dipleidy s. A single set of chromosomes

1

1 - p, 2 - q, 3 - 1, 4 - 8

2

1 - t, 2 - p, 3 - q, 4 - s

3

1 - q, 2 - s, 3 - p, 4 - r

4

1 - s, 2 - t, 3 - p, 4 - q

Principle of Inheritance and Variation

184730 What ratio is expected in offsprings if father is colour blind and Mother-Father was colour blind

1

50 %

daughter - colour blind

2 All the sons are colour blind

3 All the daughters colour blind

4 All the sons are normal
APMT-1999

Explanation:

: If father is colour blind and mother's father was colour blind then $50 %$ daughter is colour blind.
| | $X^{c}$ | X |
| :---: | :--- | :--- |
| $X^{c}$ | $X^{c} X^{c}$
colour blind girl | $X^{c} X$
carrier |
| Y | $X^{c} Y$ boy
colour blind | XY
normal |

Principle of Inheritance and Variation

184734 A woman with albinic father marries an albinic man. The proportion of her progeny is

1 2 normal: 1 albinic

2 All normal

3 All albinic

4 1 normal: 1 albinic

Explanation:

: The women is heterozygous as albinic concitions is recessive hence when she marries an albinic man, the offspring are $50 %$ normal and $50 %$ albinc. The women is a carrier as it is a heterozygous condition.
$\underset{Women}{Father is albicic (} x y$ ) so woman is heterozygous (Xx).

Rajasthan PMT-2011

Principle of Inheritance and Variation

184735 Absence of teeth, bifid tongue and mental retardness are observed in

1 Down's syndrome

2 Albinism

3 Klinefelter's syndrome

4 Oral-facial-tigital syndrome

NEET-2018

Principle of Inheritance and Variation

184742 Match Column I with Column II and find the correct answer:
Column I Column II
1. Aneuploidy p. Increase in whole set of chromosomes
2. Monoploidy q. Loss of gain of a chromosome
3. Polyploidy r. Two sets of chromosomes
4. Dipleidy s. A single set of chromosomes

1

1 - p, 2 - q, 3 - 1, 4 - 8

2

1 - t, 2 - p, 3 - q, 4 - s

3

1 - q, 2 - s, 3 - p, 4 - r

4

1 - s, 2 - t, 3 - p, 4 - q

Principle of Inheritance and Variation

184730 What ratio is expected in offsprings if father is colour blind and Mother-Father was colour blind

1

50 %

daughter - colour blind

2 All the sons are colour blind

3 All the daughters colour blind

4 All the sons are normal
APMT-1999

Explanation:

: If father is colour blind and mother's father was colour blind then $50 %$ daughter is colour blind.
| | $X^{c}$ | X |
| :---: | :--- | :--- |
| $X^{c}$ | $X^{c} X^{c}$
colour blind girl | $X^{c} X$
carrier |
| Y | $X^{c} Y$ boy
colour blind | XY
normal |

Principle of Inheritance and Variation

184734 A woman with albinic father marries an albinic man. The proportion of her progeny is

1 2 normal: 1 albinic

2 All normal

3 All albinic

4 1 normal: 1 albinic

Explanation:

: The women is heterozygous as albinic concitions is recessive hence when she marries an albinic man, the offspring are $50 %$ normal and $50 %$ albinc. The women is a carrier as it is a heterozygous condition.
$\underset{Women}{Father is albicic (} x y$ ) so woman is heterozygous (Xx).

Rajasthan PMT-2011

Principle of Inheritance and Variation

184735 Absence of teeth, bifid tongue and mental retardness are observed in

1 Down's syndrome

2 Albinism

3 Klinefelter's syndrome

4 Oral-facial-tigital syndrome

NEET-2018

Principle of Inheritance and Variation

184742 Match Column I with Column II and find the correct answer:
Column I Column II
1. Aneuploidy p. Increase in whole set of chromosomes
2. Monoploidy q. Loss of gain of a chromosome
3. Polyploidy r. Two sets of chromosomes
4. Dipleidy s. A single set of chromosomes

1

1 - p, 2 - q, 3 - 1, 4 - 8

2

1 - t, 2 - p, 3 - q, 4 - s

3

1 - q, 2 - s, 3 - p, 4 - r

4

1 - s, 2 - t, 3 - p, 4 - q

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