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Class 6	Science Mathematics Social Science	English Hindi Computer
Class 7	Science Mathematics Social Science	English Hindi Computer
Class 8	Science Mathematics Social Science	English Hindi Computer
Class 9	Science Mathematics Social Science	English Hindi Computer
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Class 11	Physics Chemistry Biology	Mathematics English Economics
Class 12	Physics Chemistry Biology	Mathematics English Economics
Class 5	EVS
College Entrance	Jamia Millia Islamia Aligarh Muslim University Banaras Hindu University

2016

Q11
Why are sacred groves highly protected

Solution

Q12
(a) Name the organic material exine of the pollen grain is made up of. How is this material advantageous to pollen grain ? (b) Still it is observed that it does not form a continuous layer around the pollen grain. Give reason. (c) How are ‘pollen banks’ useful ?.

Solution

Q13
a) Mention the problems that are taken care of by Reproduction and Child Health Care programme. (b) What is amniocentesis and why there is a statutory ban on it ?

Solution

Q14
What is a test cross ? How can it decipher the heterozygosity of a plant ?

Solution

Solution

Q16
Differentiate between homology and analogy. Give one example of each.

Solution

Solution

Q18
a) Write the two limitations of traditional breeding technique that led to promotion of micro propagation. (b) Mention two advantages of micro propagation. (c) Give two examples where it is commercially adopted.

Solution

Q19
(a) How do organic farmers control pests ? Give two examples. (b) State the difference in their approach from that of conventional pest control methods.

Solution

Q20
a) Name the selectable markers in the cloning vector pBR322 ? Mention the role they play. b) Why is the coding sequence of an enzyme (β-galactosidase) a preferred selectable marker in comparison to the ones named above ?

Solution

Subjects

2016

Q11 Why are sacred groves highly protected

Solution

Q12 (a) Name the organic material exine of the pollen grain is made up of. How is this material advantageous to pollen grain ? (b) Still it is observed that it does not form a continuous layer around the pollen grain. Give reason. (c) How are ‘pollen banks’ useful ?.

Solution

Q13 a) Mention the problems that are taken care of by Reproduction and Child Health Care programme. (b) What is amniocentesis and why there is a statutory ban on it ?

Solution

Q14 What is a test cross ? How can it decipher the heterozygosity of a plant ?

Solution

Solution

Q16 Differentiate between homology and analogy. Give one example of each.

Solution

Solution

Q18 a) Write the two limitations of traditional breeding technique that led to promotion of micro propagation. (b) Mention two advantages of micro propagation. (c) Give two examples where it is commercially adopted.

Solution

Q19 (a) How do organic farmers control pests ? Give two examples. (b) State the difference in their approach from that of conventional pest control methods.

Solution

Q20 a) Name the selectable markers in the cloning vector pBR322 ? Mention the role they play. b) Why is the coding sequence of an enzyme (β-galactosidase) a preferred selectable marker in comparison to the ones named above ?

Solution

Subjects

Q11
Why are sacred groves highly protected

Q12
(a) Name the organic material exine of the pollen grain is made up of. How is this material advantageous to pollen grain ? (b) Still it is observed that it does not form a continuous layer around the pollen grain. Give reason. (c) How are ‘pollen banks’ useful ?.

Q13
a) Mention the problems that are taken care of by Reproduction and Child Health Care programme. (b) What is amniocentesis and why there is a statutory ban on it ?

Q14
What is a test cross ? How can it decipher the heterozygosity of a plant ?

Q16
Differentiate between homology and analogy. Give one example of each.

Q18
a) Write the two limitations of traditional breeding technique that led to promotion of micro propagation. (b) Mention two advantages of micro propagation. (c) Give two examples where it is commercially adopted.

Q19
(a) How do organic farmers control pests ? Give two examples. (b) State the difference in their approach from that of conventional pest control methods.

Q20
a) Name the selectable markers in the cloning vector pBR322 ? Mention the role they play. b) Why is the coding sequence of an enzyme (β-galactosidase) a preferred selectable marker in comparison to the ones named above ?