Match the following? List I List II List III a) Duchenne muscular dystrophy DMD i) Y- linked p) Impair blood clotting b) Hypertrichosis ii) Sex limited q) Expression is limited to only one sex c) Haemophilia iii) X - linked recessive r) Progressive weakening of muscles d) Baldness iv) Holandric s) Excessive growth of hair on the pinna

(a-iii-r), (b-i-s), (c-iv-p), (d-ii-q)

(a-i-r), (b-ii-s), (c-iii-p), (d-iv-q)

(a-i-r), (b-iv-s), (c-iii-p), (d-ii-q)

(a-i-p), (b-ii-q), (c-iii-r), (d-iv-s)

Study the two cases carefully. What would be the correct interpretation of the two cases? Case Mother Father Children Case I With disease Normal Sons always with diseases Case II With disease Normal Sons and daughters could show disease

Case I : X -linked recessive disease Case II : Autosomal recessive disease

Case I : Y -linked recessive disease Case II : X -linked recessive disease

Case I and II : X -linked recessive diseases

Case I : X -linked dominant disease Case II : Autosomal dominant disease

EASY

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What is sex differentiation?

Important Questions on Principles of Inheritance and Variation

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

Explain the process of sex determination in human beings diagrammatically.

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

In honeybee, the process of male bee without fertilization is termed as Swarming.

MEDIUM

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

Describe the chromosomal basis of sex determination in humans, honeybees and birds.

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

If a colorblind woman marries a normal visioned man, their sons will be:

MEDIUM

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

A woman has X-linked condition on one of her X chromosomes. These chromosomes can be inherited by:

MEDIUM

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

Match the following?

List I		List II		List III
a)	Duchenne muscular dystrophy DMD	i)	Y- linked	p)	Impair blood clotting
b)	Hypertrichosis	ii)	Sex limited	q)	Expression is limited to only one sex
c)	Haemophilia	iii)	$X$ - linked recessive	r)	Progressive weakening of muscles
d)	Baldness	iv)	Holandric	s)	Excessive growth of hair on the pinna

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

Write a note on queen bee?

MEDIUM

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

Which pair is incorrect ?

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

Experimental verification of the chromosomal theory of inheritance was done by

MEDIUM

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

In Morgan's experiment with Drosophila, when a yellow bodied white-eyed female was crossed with brown bodied red-eyed male and their

F_{1}

Progeny were intercrossed. What was the percentage of recombinants in the

F_{2}

generation?

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

In which of the organism, the following type of sex determination is possible

Question Image

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

Completely sex-linked genes are located on _______.

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

Colour blindness in human beings is

MEDIUM

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

Statement I : All the three types of allosomal genes - $X$ linked, $Y$ linked and $XY$ linked are present only in male human being.
Statement II : Only $X$ linked and not $XY$ linked genes are present in female human being.

The correct option among the following is

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

_______ is an example of

X

-linked recessive trait.

MEDIUM

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

All given traits are sex limited, except

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

If a genetic disease is transferred from a phenotypically normal but carrier female to only some of the male progeny, the disease is

HARD

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

Study the two cases carefully. What would be the correct interpretation of the two cases?

Case	Mother	Father	Children
Case $I$	With disease	Normal	Sons always with diseases
Case $II$	With disease	Normal	Sons and daughters could show disease

MEDIUM

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

Criss cross inheritance means:

HARD

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Sex Linked Inheritance

Match column I and column II and select the correct option:

	Column – I		Column – II
(A)	Hypertrichosis	(i)	Sex influenced trait
(B)	Pattern baldness	(ii)	X – linked recessive trait
(C)	Haemophilia	(iii)	Y – Linked trait
(D)	Antlers in male deer	(iv)	Sex – limited trait

What is sex differentiation?

Important Questions on Principles of Inheritance and Variation

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