Section A
Q1. Write short notes on the following :
(a) Nuclear pore complex
(b) Microtubule binding proteins
(c) Substitution mutation
(d) Functions of ribosomes and subunits
(e) Nuclear male sterile lines for hybrid seed production
Indian Forest Service 2023 Botany Paper II Question Paper PDF
- Year 2023
- Conducted By UPSC
- Questions 8
- Maximum Marks 200
- Duration Three Hours
- Languages English
Exam Details
| Detail | Information |
|---|---|
| Examination | Indian Forest Service (Main) Examination |
| Year | 2023 |
| Conducting Body | UPSC |
| Paper | Botany Paper - II |
| Subject | Botany |
| Duration | Three Hours |
| Maximum Marks | 200 |
| Number of Questions | 8 |
| Question Type | Mixed |
This document contains the Indian Forest Service (Main) Examination 2023 Botany Paper II question paper, conducted by UPSC. The paper consists of 8 questions, with candidates required to attempt 5, including compulsory questions 1 and 5. It covers various aspects of Botany, with marks indicated against each question and part. This paper is crucial for aspirants preparing for the IFS Mains examination, offering a clear understanding of the subject's scope and difficulty level.
Major Topics Covered
- Nuclear pore complex
- Microtubule binding proteins
- Substitution mutation
- Functions of ribosomes and subunits
- Nuclear male sterile lines
- Hybrid seed production
- Membrane transport
- Carrier molecules
- Extranuclear inheritance
- Micropropagation
- Meiotic crossing-over
- Mitochondria
- Cell cycle regulators
- Direct gene transfer methods
- Heterochromatin
- Dominance
- Epistasis
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 2023 Botany Paper I
- Indian Forest Service (Main) Examination 2023 General Studies Paper I
- Indian Forest Service (Main) Examination 2023 General Studies Paper II
- Indian Forest Service (Main) Examination 2023 Botany Paper II Answer Key
- Indian Forest Service (Main) Examination Botany Syllabus
- UPSC Mains Botany Syllabus
- Indian Forest Service (Main) Examination Pattern
- UPSC Mains Exam Pattern
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. What are the processes of membrane transport? How do carrier molecules transport materials across a cell membrane?
(a) What are the processes of membrane transport? How do carrier molecules transport materials across a cell membrane?
(b) Explain extranuclear inheritance citing examples from two different organelles.
(c) What are the different stages involved in micropropagation?
Section A
Q3. Describe the mechanism of meiotic crossing-over and the theories related to the process.
(a) Describe the mechanism of meiotic crossing-over and the theories related to the process.
(b) "Mitochondria are semi-autonomous organelles." Justify.
(c) What are cell cycle regulators? Discuss their different types. Why are these important?
Section A
Q4. Give a detailed account of direct gene transfer methods.
(a) Give a detailed account of direct gene transfer methods.
(b) Is heterochromatin genetically inactive? Explain. Discuss the function and features of heterochromatin.
(c) Give the difference between dominance and epistasis. Explain different kinds of epistatic interactions.
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Frequently asked questions
What is the name of the exam?
The exam is the Indian Forest Service (Main) Examination.
What is the year of this question paper?
This question paper is from the year 2023.
Which paper is this?
This is Botany Paper - II.
Who conducts the Indian Forest Service (Main) Examination?
The examination is conducted by UPSC (Union Public Service Commission).
How many questions are there in total?
There are eight questions in total.
How many questions are to be attempted?
Candidates are required to attempt five questions.