Barr Body is found in the cytoplasm during 

(1) interphase in cell of female mammal

(2) interphase in cell of male mammal

(3) prophase in cell of female mammal

(4) prophase in cell of male mammal.

Which of the following statement is correct?

(1) Mendel’s work remained unrecognised till 1920.

(2) Mendel’s work suggested that factors were discrete units.

(3) Mendel provided physical proof of the existence of factors.

(4) He used geographical approaches to solve the problems of biology.

Who rediscovered Mendel’s laws?

(1) de Vries

(2) Correns

(3) Von Tschermak

(4) all of these

Pairing and separation of a pair of chromosomes would lead to segregation of a pair of factors they carried. This conclusion was drawn by

(1) Walter Sutton

(2) Theodore Boveri

(3) both (1) and (2)

(4) Thomas Hunt Morgan

Chromosomal theory of inheritance is a combination of

(1) Knowledge of chromosomal segregation with Mendelian principle

(2) Knowledge of Dihybridcross with motion of chromosome

(3) Knowledge of Law of dominance with chromosomal appearance

(4) Knowledge of classical genetics with modern molecular biology