UPSC Mains BOTANY-PAPER-II 2016

32 Questions • 400 Marks • With Detailed Model Answers

1
10 Marksmedium
Explain the following: Polyteny differs from polyploidy
BiologyGenetics
2
10 Marksmedium
Factors affecting recombination frequencies
BiologyGenetics
3
10 Marksmedium
Chi-square test as a test of goodness of fit
StatisticsBiology
4
10 Marksmedium
C-value paradox
BiologyGenetics
5
10 Marksmedium
Chemical mutagens
BiologyGenetics
6
20 Marksmedium
Explain and describe the tools and techniques of FISH.
BiologyGenetics
7
15 Markseasy
Describe the basic structure of a nucleosome.
BiologyGenetics
8
15 Marksmedium
The consequences of translocations are profound. They lead not only to a change in gene linkage in the translocated sections but also to easily incurred meiotic abnormalities." Discuss.
BiologyGenetics
9
15 Marksmedium
Citing suitable evidences, explain plastid inheritance in four o'clock plant.
BiologyGenetics
10
15 Marksmedium
Discuss Inbreeding depression versus Heterosis.
BiologyGenetics
11
20 Markshard
How does the Ins P3/DAG pathway participate in the process of translocation of cellular signals?
BiologyBiochemistry
12
10 Markseasy
Back cross method
BiologyGenetics
13
10 Marksmedium
Restriction endonucleases
BiologyBiotechnology
14
10 Marksmedium
Transgenic plants as living bioreactors
BiologyBiotechnology
15
10 Marksmedium
Molecular markers
BiologyGenetics
16
10 Markshard
Retroviruses as vectors
BiologyBiotechnology
17
10 Markseasy
Explain the following: Apoenzyme
BiologyBiochemistry
18
10 Marksmedium
Ethylene as a volatile hormone
BiologyPlant Physiology
19
10 Marksmedium
Soil salinity also restricts the growth of plants
BiologyEcology
20
10 Markseasy
Taiga or Boreal forests
EcologyEnvironment
21
10 Marksmedium
The pyramid of energy always takes a true upright shape." Why?
EcologyEnvironment
22
15 Marksmedium
Describe the role of glyoxysomes in conversion of fats into more mobile molecules.
BiologyPlant Physiology
23
15 Marksmedium
Distinguish between phloem loading and phloem unloading.
BiologyPlant Physiology
24
20 Marksmedium
What is Niche overlap ? Narrate the biogeographic classifications of India.
EcologyGeography
25
15 Marksmedium
What are the functions of the enzymes which need copper, zinc and molybdenum as their co-factors?
BiologyBiochemistry
26
15 Marksmedium
Enumerate the effects of oil spillage and suggest the control and remedial measures of it.
EnvironmentEcology
27
20 Marksmedium
Define ecological succession. Describe the causes and basic types of ecological succession.
EcologyEnvironment
28
10 Markseasy
Recycling is an integral part of solid waste management
EnvironmentSustainability
29
10 Marksmedium
OTEC
EnvironmentEnergy
30
10 Markshard
Allosteric enzymes and Feedback control
BiologyBiochemistry
31
10 Marksmedium
Biosafety and Bioremediation
EnvironmentBiotechnology
32
10 Marksmedium
Solar pond
EnvironmentEnergy