Q.I (B) Fill in the blanks :

*1. In ..................... mode of reproduction, the offsprings are with minor differences.

*2. Both the parents contribute equal amount of ..................... material to

the offspring.

*3. Dominant character masks the ..................... character.

*4. Selection by nature is not ..................... but ..................... .

5. Mendel’s experiments were based on a number of visible contrasting

characters of garden peas ..................... .

6. A fragment of DNA that provides complete information about one protein is

known as the ..................... for that protein.

7. All children inherit ..................... chromosome from their mother.

8. Sex determination in human beings is ..................... .

9. ..................... are collected from different levels of depths.

10. Minor differences occur in asexual reproduction due to inaccuracies

occuring in ..................... .

Answers :

1. asexual 2. genetic

3. recessive 4. deliberate, natural

5. Pisum sativum 6. gene

7. X 8. genetical

9. Fossils 10. DNA copying