Section A
Q1. Write short notes on the following:
(a) Membrane lipids
(b) Cyclins and cyclin-dependent kinases
(c) Homologous recombination
(d) Characteristics of cytoplasmic inheritance
(e) Usage of backcrossing in plant breeding
Indian Forest Service 2022 Botany Paper II Question Paper PDF
- Year 2022
- Conducted By UPSC
- Questions 8
- Maximum Marks 200
- Duration Three Hours
- Languages English
Exam Details
| Detail | Information |
|---|---|
| Examination | Indian Forest Service (Main) Examination |
| Year | 2022 |
| Conducting Body | UPSC |
| Paper | Botany Paper - II |
| Subject | Botany |
| Duration | Three Hours |
| Maximum Marks | 200 |
| Number of Questions | 8 |
| Question Type | Mixed |
This is the Botany Paper II for the Indian Forest Service (Main) Examination held in 2022 by UPSC. The paper is divided into two sections, A and B, with a total of eight questions, of which five are to be attempted. Questions 1 and 5 are compulsory, and candidates must select at least one question from each section. The exam allows three hours to complete and carries a maximum of 200 marks. This paper is crucial for aspirants aiming for a career in forestry through the IFS examination, providing a detailed look at advanced botany topics.
Major Topics Covered
- Membrane lipids
- Cyclins and cyclin-dependent kinases
- Homologous recombination
- Cytoplasmic inheritance
- Plant breeding
- G-protein-coupled receptors
- Sex-linked inheritance
- Heterosis
- Apomixis
- Lac operon regulation
- Peroxisomes
- Biomolecule oxidation
- Molecular markers
- Lampbrush chromosomes
- Genetic code
- Poisson probability distribution
- Binomial distribution
Why This Paper is Important
- Useful for Indian Forest Service (Main) Examination preparation
- Helps understand the latest exam pattern
- Useful for practice and self-assessment
- Covers frequently asked General Studies topics
- Helpful for analysing question trends
Related Resources
- Indian Forest Service (Main) Examination 2022 Botany Paper - I
- Indian Forest Service (Main) Examination 2021 Botany Paper - II
- UPSC Combined Geo-Scientist Examination Botany Paper
- Indian Forest Service (Main) Examination 2022 Botany Paper - II Answer Key
- Indian Forest Service (Main) Examination Botany Syllabus
- UPSC Main Exam Syllabus
- Indian Forest Service (Main) Examination Pattern
- UPSC Exam Pattern for Main Exams
Instructions
- There are EIGHT questions in all, out of which FIVE are to be attempted.
- Out of the remaining SIX questions, THREE are to be attempted selecting at least ONE question from each of the two Sections A and B.
- Attempts of questions shall be counted in sequential order.
- Unless struck off, attempt of a question shall be counted even if attempted partly.
- Any page or portion of the page left blank in the Question-cum-Answer Booklet must be clearly struck off.
- The number of marks carried by a question/part is indicated against it.
- Neat sketches may be drawn, wherever required.
- Answers must be written in ENGLISH only.
Questions (page 2)
Section A
Q2.
(a) What is the basic structure of G-protein-coupled receptors ? Where are they located in the cell ? Explain their mechanism of action and functions.
(b) Explain the sex-linked pattern of inheritance with an example.
(c)
(i) Explain how the hybrid plants express heterosis.
(ii) State the role of apomixis in crop plant improvement.
Section A
Q3.
(a) Explain the process of regulation of lac operon in E. coli.
(b) "Peroxisomes play a key role in the oxidation of biomolecules." Elaborate the statement.
(c) Give a critical account of the role of molecular markers in plant breeding.
Section A
Q4.
(a) What are lampbrush chromosomes ? Draw a diagram and describe their structure. Are lampbrush chromosomes significant ? Explain.
(b) Explain the important features of a genetic code.
(c) State the conditions to apply the Poisson probability distribution. Add a brief note on the importance of binomial distribution.
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Frequently asked questions
What is the name of the exam for which this paper was conducted?
This paper is from the Indian Forest Service (Main) Examination.
Which year was the Indian Forest Service (Main) Examination held?
The examination was held in 2022.
Who conducts the Indian Forest Service Examination?
The Indian Forest Service Examination is conducted by UPSC (Union Public Service Commission).
What is the subject and paper code for this question paper?
The subject is Botany, and the paper is Paper - II with the code JHGT-B-BTN.
What is the total time allowed for this paper?
The time allowed for this paper is Three Hours.
What are the maximum marks for Botany Paper - II?
The maximum marks for this paper are 200.