Biology-Heredity and Variation Paper-2

Test Preparation on Biology-Heredity and Variation Paper-2

1.

The cross between heterozygous A blood group mother with B blood group father heterozygous).What will be the expected blood group of First filial generation.

1AB group
2A group
3B group
4O group
5All of the above

2.

What will be expected blood groups in the off spring when there is a cross between AB blood group mother and heterozygous B blood group father ?

125 % AB group 25 % A group 50 % B group
250 % AB group 25 % A group 25 % B group
325% AB group 50% O group 25 % A group
425 % O group 50 % B group 25 % A group

3.

Which law of Mendel can be explained on chromosomal basis of inheritance ?

1Law of dominance
2Law of segregation
3Law of independent assortment
4All the above

4.

What does the chart & given below represent ?

1XX - XY type of sex determination
2XX - XO type of sex determination
3xy0 - xxo type of sex determination
4XO - XX Type of sex determination

5.

The value of X/A is given in column A and sex of the fly is written in column B. Match the following : Column I 1. 1 2. 1.5 3. 0.67 4. 0.33 5. 0.5 Column II (a) Normal Male (b) super male Sterile (c) inter sex (d) super Female sterile (e) Normal Female

1(1 - a) (2 - d) (3 - c) (4 - e) (5 - b)
2(1 - e) (2 - d) (3 - c) (4 - b) (5 - a)
3(1 - b) (2 - a) (3 - c) (4 - d) (5 - e)
4(1 - e) (2 - c) (3 - d) (4 - a) (5 - b).

6.

Out of the marked portions X, Y and Z, in which region the male worm develop ?

1X
2Y
3Z
4All the three regions

7.

Which kind of structural abnormality is seen in the above chromosome?

1Terminal deletion
2Duplication (Tandem)
3Duplication (Reverse)
4Inversion

8.

Name the abnormality seen in chromosome number - 2

1Interstitial Deletion
2Terminal Deletion
3Tandem Duplication
4Reverse Duplicaton

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