Indian Forest Service 2019 Botany Paper II Question Paper PDF

Central Government Jobs Other Jobs 2019

  • Year 2019
  • Conducted By UPSC
  • Questions 8
  • Maximum Marks 200
  • Duration Three Hours
  • Languages English

Exam Details

Detail Information
Examination Indian Forest Service (Main) Examination
Year 2019
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 question paper for the Indian Forest Service (Main) Examination held in 2019 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 paper carries a maximum of 200 marks and is to be completed within three hours. It is designed to assess candidates' in-depth knowledge of various aspects of Botany relevant to forestry. This paper is crucial for aspirants aiming to qualify for the Indian Forest Service.

Major Topics Covered

  • Nucleosome modification
  • B-chromosome
  • RNA molecule
  • Molecular markers
  • Synaptonemal complex
  • DNA structure and function
  • Lac operon
  • Base analogue incorporation
  • T-DNA processing
  • Agrobacterium
  • Apomixis
  • Paracentric inversions
  • Pericentric inversions
  • Meiosis
  • Point mutation
  • Prions
  • Translocation heterozygote
  • Pollen fertility
  • Z-test
  • Chi-square test
  • Plant breeding

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 2019 Botany Paper - I
  • Indian Forest Service (Main) Examination 2019 General Studies Paper - I
  • Indian Forest Service (Main) Examination 2019 General Studies Paper - II
  • Indian Forest Service (Main) Examination 2019 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

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. \mathcal{I}% _{M_{1},M_{2}}^{(h,\sigma),(h,\sigma)}(-\varepsilon)

Questions (page 2)

Section A

Q1. Write short notes on the following:

(a) Nucleosome modification and its significance

(b) Behaviour and significance of B-chromosome in genetic variation

(c) Importance of RNA molecule and its role in the origin and evolution of living organisms

(d) Types and applications of molecular markers

(e) Calculate the mean, standard error and coefficient of variation from the following data:
Number of flowers/plant (x) | 4 | 6 | 5 | 8 | 7 | 9
Number of plants (y) | 3 | 6 | 5 | 5 | 9 | 4

Section A

Q2.

(a) Discuss the structure and function of synaptonemal complex, mentioning its location. State the different structural types of DNA with outline sketches.

(b) Describe lac operon and its negative as well as positive controls, with suitable diagrams.

(c) Discuss the molecular mechanism of base analogue incorporation and its effects.

Section A

Q3.

(a) Describe the steps involved in T-DNA processing and transfer from Agrobacterium cell to the host plant nuclear genome, with suitable diagram. Add a note on the types and advantages of apomixis.

(b) Distinguish between paracentric and pericentric inversions with diagrams. Explain with sketches the different meiotic products resulting from a single crossover within a paracentric and pericentric loop.

(c) Explain the molecular mechanism of point mutation.

Section A

Q4.

(a) What are prions and where do they exist ? Explain the process of prion replication and role of cofactors in prion infectivity.

(b) Discuss the meiotic configurations in a translocation heterozygote (considering 2 pairs of chromosomes involved in translocation), with diagrams, and its subsequent effects on pollen fertility.

(c) Write an account on the applications of 'z' and chi-square tests in plant breeding programme.

Question paper preview

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Indian Forest Service Main 2019 Botany Paper II question paper page 1 instructions scan PDF download UPSC
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Frequently asked questions

What is the name of the exam?

The exam is the Indian Forest Service (Main) Examination.

What year is this question paper from?

This question paper is from the 2019 examination.

Which board conducts the Indian Forest Service Examination?

The examination is conducted by UPSC (Union Public Service Commission).

What is the subject of this paper?

This paper is Botany Paper - II.

What is the maximum marks for this paper?

The maximum marks for Botany Paper - II is 200.

What is the time allowed to complete this paper?

The time allowed to complete this paper is Three Hours.

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