U4: CHROMOSOME DISCOVERY

Question 1

This refers to carried traits from one generation to the next.

Answer 1

Mendelian factors

Question 2

This scientist recognized and explored the fibrous network within the nucleus (Chromatin).

Answer 2

Walther Flemming

Question 3

Flemming termed the fibrous network inside the nucleus as “stainable material” or?

Answer 3

Chromatin

Question 4

This scientist observed cells in various stages of division (Mitosis).

Answer 4

Walther Flemming

Question 5

This scientist recognized that chromosomal movement during mitosis offered a mechanism for the precise distribution of nuclear material during cell division.

Answer 5

Walther Flemming

Question 6

This scientist provided the first evidence that germ cell chromosomes imparted continuity between generations.

Answer 6

Theodor Boveri

Question 7

This scientist worked on Ascaris embryos which provided one of the first descriptions of Meiosis.

Answer 7

Theodor Boveri

Question 8

This scientist is one of the pioneers of embryology.

Answer 8

Theodor Boveri

Question 9

These scientists focused on Mitosis.

Answer 9

Gregor Mendel
Walther Flemming

Question 10

These scientists focused on Meiosis.

Answer 10

Theodor Boveri
Walter Sutton

Question 11

This scientist described the configurations of individual chromosomes in cells at various stages of Meiosis.

Answer 11

Walter Sutton

Question 12

This scientist used the testes of Brachystola magna.

Answer 12

Walter Sutton

Question 13

This is the scientific name for grasshoppers.

Answer 13

Brachystola magna

Question 14

Boveri and Sutton’s experiments proved the physical basis of what Mendelian law and theory?

Answer 14

Mendelian law of heredity / Chromosomal Theory of Inheritance

Question 15

Boveri was also known for his experiments in the division of the?

Answer 15

Cytoplasm in embryogenesis

Question 16

This scientist demonstrated the Chromosomal Theory of Inheritance using Drosophilia melanogaster.

Answer 16

Thomas Hunt Morgan

Question 17

This scientist pioneered “Fly Room” experiments.

Answer 17

Thomas Hunt Morgan

Question 18

Insect that Morgan used in his experiments

Answer 18

Drosophilia melanogaster

Question 19

This scientist helped in establishing the chromosomal basis of heredity and sex or Nondisjunction.

Answer 19

Calvin Bridges

Question 20

These scientists focused on sex linkages or genes in the gametes.

Answer 20

Thomas Hunt Morgan
Calvin Bridges

Question 21

T/F: Aneuploidies are results of meiotic products.

Answer 21

True