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Subject: BIOLOGY Solved MCQs

Q.1 The Mendel factors which control the inheritance of characters are called:

 

Chromosomes

RNA

Genes

Centrosomes

 

Q.2 Gametes have:

 

The Same Number Of Chromosomes As The Body Cells

Twice The Number Of Chromosomes As The Body Cells

Half The Number Of Chromosome, As The Body Cells

One Fourth The Number Of Chromosomes As The Body Cells

 

Q.3 Which of the following number of chromosomes are present in the somatic cells of Drosophila?

 

4

8

16

20

 

Q.4 which of the following determines sex of the offspring in human beings?

 

Sperm

Egg

Somatic Cell

None Of These

 

 

Q.6 In which of the following, egg determines sex of the offspring?

 

Drosophila

Man

Grass Hopper

Birds

 

Q.7 In the cross of male and female of F1 generation in Drosophila, what will be the ratio of red eyed males among all the offspring of F2 generation?

 

25%

33%

50%

75%

 

Q.8 Which of the following is sex-linked trait in man?

 

Eye Colour

Skin Colour

Colour Blindness

Blood Group

 

Q.9 Colour blindness is a condition in which the individuals have difficulty in distinguishing:

 

Black From White

White From Green

Yellow From Red

Red From Green

 

 

Q.10 Gene for the trait of colour blandness in man is located on

 

Autosomes

X Chromosome

Y Chromosome

On Both X And Y Chromosomes


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