Principles of Inheritance and Variation Test

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Principles of Inheritance and Variation Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Phenylketonuria is a genetic disorder of

A
trisomic condition

B
monosomic dominant gene

C
autosomal dominant gene

D
autosomal recessive gene
Question 2
1 / -0

A cross between yellow round and green wrinkled seed pea plants gave the following four types of progeny in equal proportions: yellow round, yellow wrinkled, green round and green wrinkled. The genotypes of the parents in this case must be

A
YYRR X yyrr

B
YyRr X yyrr

C
YYRR X YYRR

D
YyRr X YYRR
Question 3
1 / -0

Drosophila flies with XXY genotype are females, but human beings with such genotype are abnormal males. It shows that

A
Y-chromosome is essential for sex determination in Drosophila

B
Y-chromosome is female determinator in Drosophila

C
Y-chromosome is male determinator in human beings

D
Y-chromosome has no role in sex determination either in Drosophila or in human beings
Question 4
1 / -0

The genotypic ratio in a monohybrid cross is

A
3 : 1

B
9 : 3 : 3 : 1

C
2 : 2 : 1

D
1 : 2 : 1
Question 5
1 / -0

Who is regarded as the father of genetics?

A
Mendel

B
Bateson

C
Morgan

D
Watson

Solution

Mendel is regarded as the father of genetics due to his initial law of inheritance given by him on the basis of Hybridisation conducted by him on garden pea.
Question 6
1 / -0

Which of the following chromosome numbers is present in a trisomic individual?

A
2n + 1

B
2n - 1

C
2n - 2

D
2n + 2
Question 7
1 / -0

When chromosome sets are present in multiples of 'n', the condition is called

A
polyploidy

B
aneuploidy

C
euploidy

D
diploidy
Question 8
1 / -0

Sex-influenced genes are coded by

A
autosomal genes

B
X linked genes

C
Y linked genes

D
epistatic genes
Question 9
1 / -0

'Gametes are never hybrid'. It is a statement of the law of

A
dominance

B
segregation

C
independent assortment

D
random fertilisation
Question 10
1 / -0

Genotype is the

A
Genetic combination

B
Trait expressed

C
Genetic constitution of the phenotype

D
Expressed genes

Solution

Genotype is the genetic combination of an individual. TT and Tt are genotypically different but phenotypically appear tall

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Principles of Inheritance and Variation Test - 2

Result

Principles of Inheritance and Variation Test - 2

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SHARING IS CARING

Question 1

trisomic condition

monosomic dominant gene

autosomal dominant gene

autosomal recessive gene

Question 2

YYRR X yyrr

YyRr X yyrr

YYRR X YYRR

YyRr X YYRR

Question 3

Y-chromosome is essential for sex determination in Drosophila

Y-chromosome is female determinator in Drosophila

Y-chromosome is male determinator in human beings

Y-chromosome has no role in sex determination either in Drosophila or in human beings

Question 4

3 : 1

9 : 3 : 3 : 1

2 : 2 : 1

1 : 2 : 1

Question 5

Mendel

Bateson

Morgan

Watson

Solution

Question 6

2n + 1

2n - 1

2n - 2

2n + 2

Question 7

polyploidy

aneuploidy

euploidy

diploidy

Question 8

autosomal genes

X linked genes

Y linked genes

epistatic genes

Question 9

dominance

segregation

independent assortment

random fertilisation

Question 10

Genetic combination

Trait expressed

Genetic constitution of the phenotype

Expressed genes

Solution

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