UPSC Mains BOTANY-PAPER-II 2017

36 Questions • 410 Marks • With Detailed Model Answers

1
10 Marksmedium
Draw a labelled diagram of prokaryotic and eukaryotic chloroplast and describe their functions.
BotanyCell Biology
2
10 Markshard
Molecular basis of sex differentiation
GeneticsBiology
3
10 Marksmedium
Role of mutations in plant evolution
BotanyGeneticsEvolution
4
10 Markshard
Molecular basis of cell cycle
Cell BiologyGenetics
5
10 Marksmedium
Student's t-test is a test of significance. Explain.
StatisticsBiology
6
20 Marksmedium
Explain the importance of numerical and structural variations in chromosomes with respect to crop varieties.
BotanyGeneticsAgriculture
7
15 Markshard
What is the significance of chromatin organization and packaging in genome?
GeneticsMolecular Biology
8
15 Marksmedium
What is apomixis? Write about its relevance in plant breeding.
BotanyGeneticsAgriculture
9
20 Marksmedium
Define vertical and lateral transfer of genes. Explain their importance with at least one example of each.
GeneticsEvolutionMicrobiology
10
10 Markshard
What are the genetic bases of male sterility?
BotanyGeneticsAgriculture
11
5 Marksmedium
How can a protein solution be sterilized?
BiochemistryMicrobiology
12
5 Markshard
Gene silencing
GeneticsMolecular Biology
13
5 Marksmedium
Multigene families
GeneticsMolecular Biology
14
15 Marksmedium
Transgenic crops and their future
BotanyAgricultureBiotechnology
15
5 Markshard
Explain with suitable examples the importance and significance of the following : Quantitative genetics
GeneticsAgriculture
16
5 Marksmedium
Explain with suitable examples the importance and significance of the following : Linkage and crossing-over
Genetics
17
5 Marksmedium
Explain with suitable examples the importance and significance of the following : Molecular maps
GeneticsBotany
18
5 Marksmedium
Explain with suitable examples the importance and significance of the following : Sex-linked inheritance
Genetics
19
15 Marksmedium
Elaborate on the use of molecular markers in plant breeding.
BotanyGeneticsAgriculture
20
5 Marksmedium
Southern blotting
Molecular BiologyGenetics
21
5 Marksmedium
RT-PCR
Molecular BiologyBiochemistry
22
5 Markseasy
Mass selection
BotanyAgriculture
23
10 Marksmedium
β-oxidation
BiochemistryCell Biology
24
10 Marksmedium
GS-GOGAT system
BotanyBiochemistry
25
10 Marksmedium
Phytochelatins
BotanyBiochemistry
26
10 Markseasy
Biotic factors
EcologyEnvironment
27
10 Marksmedium
Biosphere reserve as a part of protected area network
EcologyEnvironment
28
15 Marksmedium
Describe the nature and importance of ion fluxes during stomatal movement.
BotanyPlant Physiology
29
20 Marksmedium
Comment on compartmentation of biochemical events in photorespiration. Add a note on the significance of photorespiration.
BotanyBiochemistry
30
15 Marksmedium
What are the purposes and aims of Environmental Impact Assessment (EIA)? What are the guiding principles for an effective EIA process? Write the main steps of an idealized EIA.
EnvironmentEcology
31
20 Marksmedium
Describe the physiological changes associated with the process of seed germination.
BotanyPlant Physiology
32
10 Marksmedium
Citric acid cycle is an amphibolic process. Discuss.
BiochemistryCell Biology
33
20 Marksmedium
What is sedimentary cycle? Explain the flow of an element showing sedimentary cycle through diagrammatic representation. What are the anthropogenic influences on such elemental cycle(s)?
EcologyEnvironment
34
20 Marksmedium
Differentiate between primary active transport and secondary active transport.
Cell BiologyBiochemistry
35
15 Marksmedium
What is the concept of ecosystem? How does succession influence the diversity and stability of an ecosystem?
EcologyEnvironment
36
15 Marksmedium
Define sustainable development. How do global warming and climatic changes influence the endemic flora and fauna of a region?
EnvironmentEcology