Tay-Sachs disease results due to lack of enzyme

(1) glucokinase

(2) hexosaminidase A

(3) Pyruvate kinase

(4) Na^- — K⁺ ATPase

A woman is married for the second time. Her first husband was ABO blood type A, and her child by that marriage was type O. Her new husband is type B and their child is type AB. WHat is the woman's ABO genotype and blood type ?

(1) I^AI^O; Blood type A

(2) I^AI^B; Blood type AB

(3) I^BI^O; Blood type B

(4) I^OI^O; Blood type O

Who is known as father of physiological genetics or father of biochemical genetics ?

(1) Slatyer

(2) Charles Elton

(3) Taylor

(4) Archibald Garrod

For how many years Gregor Mendel conducted hybridisation experiments on garden peas?

(1) 5

(2) 7

(3) 14

(4) 34

How many true breeding pea plant varieties had been selected by Mendel?

(1) 1

(2) 7

(3) 14

(4) 16

A true-breeding plant line can be obtained by

(1) Cross pollination

(2) Self pollination

(3) Continuous Cross pollination

(4) Continuous Self pollination

How many pairs of contrasting traits studied by Mendel were related to pod?

(1) 1

(2) 2

(3) 3

(4) 4

Among the given pea plant traits identify the odd one

(1) Violet flower

(2) Yellow seed

(3) Yellow pod

(4) Axial flower position

Which of the following does not contribute to Mendel’s success?

(1) Large sampling size

(2) Statistical analysis

(3) Performed experiments on single variety of pea

(4) Performed experiments on successive generations

“Filial 1 progeny” refers to

(1) First pure breed

(2) First offspring

(3) First hybrid generation

(4) Second hybrid generation