Kurukshetra University 2009 HSE Biology,Chemistry, Physics Grows planets - exam paper

Time: 3 hours
Maximum 100 marks
part - A - [10 x three = Marks 30]
ans any TEN ques..All ques. carry equal marks.
every ans should not exceed 50 words.Draw diagrams wherevber necessary.
1. Back cross.
2. Lethal genes.
3, Multiple alleles.
4. Phenotype.
5. Standard fault.
6. Vital statistics.
7. Clones.
8. Cytoplasmic inheritance.
9. Nucleotide.
10. Level of significance.
11. Selection.
12. Heterosis.
part - B [5 x six = Marks 30]
ans any 5 ques.. All ques. carry equal marks.
every ans should not exceed 200 words.
13. Enumerate the Mend els laws.
14. Elucidate the sex determination in plants.
15. What is polygenetic inheritance ? provide an example.
16. elaborate the characteristics of good average?
17. define the breeding procedures for disease resistant varieties.
18. Mention different methods of sampling.
19. elaborate the measures of mortality to express death rates?

Earning:   Approval pending.