Class 12 > PYQ BIOLOGY > 2016 > Set 1

2016

History 3 Views

Q1
A male honeybee has 16 chromosomes whereas its female has 32 chromosomes. Give one reason.

Q2
Mention the role of 'genetic mother' in MOET.

Q3
What is biopiracy ?

Q4
Mention two advantages for preferring CNG over diesel as an automobile fuel.

Q5
Write the probable differences in eating habits of Homo habilis and Homo erectus.

Q6
A single pea plant in your kitchen garden produces pods with viable seeds, but the individual papaya plant does not. Explain.

Q7
Following are the features of genetic codes. What does each one indicate ? Stop codon; Unambiguous codon; Degenerate codon; Universal codon

Q8
Suggest four important steps to produce a disease resistant plant through conventional plant breeding technology.

Q9
Name a genus of baculovirus. Why are they considered good biocontrol agents ?

Q10
Explain the relationship between CFC's and Ozone in the stratosphere.

2
3
4