chapter 2 and 3

The opposite karyotype represents :

• Turner's syndrome

• Down's syndrome

• Klinefelter's syndrome

• Normal cell

The opposite karyotype represents:

• Turner's syndrome

• Klinefelter's syndrome

• Down's syndrome

• Normal male cell

The opposite karyotype represents:

• Male Down's syndrome

• Female Down's syndrome

• Turner's syndrome

• Female normal cell

A mother with blood group (AB) married a man with blood group (O), the offspring blood groups will be.

• A and B

• A, B and O

• AB and O

• only AB

The chromosomal structure of Turner's syndrome is (44+...

• xx

• xxy

• xo

• xy

The second generation ratio of crossing of 2 individuals differ in a pair of allelic characters in case of lack of dominance is:

• 3:1

• 1:2:1

• 9:7

• 2:1

The blood group that has the two types of antigens is :

• A

• B

• AB

• O

The inheritance of yellow colour of mice represents a case of:

• complementary gene

• lack of dominance

• lethal genes

• Mendelian allils