Chromosomal basis of heredity

Question 1

In 1839, Schleiden & Schwann established the concept of ____ as the fundamental living units.

Answer 1

cells

Question 2

In 1868, Ernst Haeckel, observing that the sperm was largely nuclear material, postulated that ____ was responsible for heredity.

Answer 2

nucleus

Question 3

Hereditary transmission through the ____ and ____ was known by 1860.

Answer 3

sperm and egg

Question 4

Walther Flemming identified ____ within the nucleus in 1882.

Answer 4

chromosomes

Question 5

In 1903 Sutton and Boveri independently realised that the behaviour of chromosomes during the production of gametes paralleled the behaviour of Mendel’s hereditary elements. Hence, the chromosome were discovered to carry the ____.

Answer 5

genes