Heredity and evolution Worksheet-3

Heredity and evolution Worksheet-3

1. Equal distribution of genes in gametes occurs because:

A. They are located on pairs of homologous chromosomes

B. They are located on pairs of heterologous chromosomes

C. They are duplicated during cell division

D. None of these

2. Inheritance of traits from one generation to next was explained by:

A. Charles Robert Darwin          B. Carolus Linnaeus

C. Gregor Mendel                         D. Robert Brown

3. In Snail, Sex is determined by:

A. Sex chromosomes

B. Temperature at which eggs are incubated

C. Physical contact with surface

D. Environmental conditions to which they are exposed during life time

4. In Human beings, Sex of an individual is determined by:

A. The X chromosome in the zygote

B. The Y chromosome in zygote

C. X chromosome in sperm

D. Y chromosome in sperm

5. How many alleles for a particular trait is/ are present in a gamete?

A. One                B. Two                C. Three             D. Multiple

6. How many alleles for a particular trait is/ are present in a diploid cell?

A. One                B. Two                C. Three             D. Multiple

7. How many types of gametes will be produced by a cell having genotype- TtWw?

A. Two                B. Four               C. Six                  D. Eight

8. Who is known as Father of Evolution?

A. Charles Robert Darwin          B. Carolus Linnaeus

C. Gregor Mendel                         D. Robert Brown

9. Pea plant was selected by Gregor Mendel for his experiment because:

A. They are bisexual

B. They reproduce by self pollination

C. They have short life cycle

D. All of these

10. Study of fossils is done by:

A. Relative method                      B. Absolute method

C. Dating method                         D. All of these

Answer Key:

1. A
2. C
3. D
4. B
5. A
6. B
7. B
8. A
9. D
10. D