UPSC Civil Services Main 2020 Botany Paper II PDF Download

Central Government Jobs Other Jobs 2020

  • Year 2020
  • Conducted By UPSC
  • Questions 8
  • Maximum Marks 250
  • Duration Three Hours
  • Languages English & Hindi

Exam Details

Detail Information
Examination Civil Services (Main) Exam
Year 2020
Conducting Body UPSC
Paper Botany Paper - II
Subject Botany
Duration Three Hours
Maximum Marks 250
Number of Questions 8
Question Type Mixed

This is the Botany Paper II from the UPSC Civil Services (Main) Examination held in 2020. The paper is designed to test in-depth knowledge of Botany, with a total of 8 questions divided into two sections. Candidates are required to answer five questions in total, with questions 1 and 5 being compulsory. The exam duration is three hours, and it carries a maximum of 250 marks. This paper is crucial for candidates aspiring to join civil services and specializing in Botany.

Major Topics Covered

  • Southern blotting
  • Nuclear pore complex
  • B-chromosomes
  • Overlapping genes
  • Chi-square test
  • Signal transduction
  • Polyploidy
  • Male sterility
  • Transgenic technology
  • Plant breeding

Why This Paper is Important

  • Useful for Civil Services (Main) Exam 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

  • UPSC Civil Services (Main) Exam 2020 Botany Paper - I
  • UPSC Civil Services (Main) Exam 2019 Botany Paper - II
  • UPSC Civil Services (Main) Exam 2020 General Studies Paper - I
  • UPSC Civil Services Main 2020 Botany Paper II Answer Key
  • UPSC Civil Services Main Botany Syllabus
  • UPSC Mains Exam Pattern
  • UPSC Civil Services Main Exam Pattern
  • UPSC Mains Subjective Papers

Instructions

  • प्रश्न हैं जो दो खण्डों में विभाजित हैं तथा हिन्दी और अंग्रेज़ी दोनों में छपे हुए हैं ।
  • परीक्षार्थी को कुल पाँच प्रश्नों के उत्तर देने हैं ।
  • प्रश्न संख्या 1 और 5 अनिवार्य हैं तथा बाकी प्रश्नों में से प्रत्येक खण्ड से कम-से-कम एक प्रश्न चुनकर किन्हीं तीन प्रश्नों के उत्तर दीजिए ।
  • प्रत्येक प्रश्न/भाग के अंक उसके सामने दिए गए हैं ।
  • प्रश्नों के उत्तर उसी प्राधिकृत माध्यम में लिखे जाने चाहिए जिसका उल्लेख आपके प्रवेश–पत्र में किया गया है, और इस माध्यम का स्पष्ट उल्लेख प्रश्न-सह-उत्तर (क्यू.सी.ए.) पुस्तिका के मुख-पृष्ठ पर निर्दिष्ट स्थान पर किया जाना चाहिए ।
  • प्राधिकृत माध्यम के अतिरिक्त अन्य किसी माध्यम में लिखे गए उत्तर पर कोई अंक नहीं मिलेंगे ।
  • प्रश्नों में शब्द सीमा, जहाँ विनिर्दिष्ट है, का अनुसरण किया जाना चाहिए ।
  • जहाँ आवश्यक हो, अपने उत्तर को उपयुक्त आरेखों | चित्रों द्वारा दर्शाइए ।
  • इन्हें प्रश्न का उत्तर देने के लिए दिए गए स्थान में ही बनाना है ।
  • प्रश्नों के उत्तरों की गणना क्रमानुसार की जाएगी ।
  • यदि काटा नहीं हो, तो प्रश्न के उत्तर की गणना की जाएगी चाहे वह उत्तर अंशतः दिया गया हो ।
  • प्रश्न-सह-उत्तर पुस्तिका में खाली छोड़ा हुआ पृष्ठ या उसके अंश को स्पष्ट रूप से काटा जाना चाहिए ।

  • There are EIGHT questions divided in TWO SECTIONS and printed both in HINDI and in ENGLISH.
  • Candidate has to attempt FIVE questions in all.
  • Questions no. 1 and 5 are compulsory and out of the remaining, any THREE are to be attempted choosing at least ONE question from each section.
  • The number of marks carried by a question / part is indicated against it.
  • Answers must be written in the medium authorized in the Admission Certificate which must be stated clearly on the cover of this Question-cum-Answer (QCA) Booklet in the space provided.
  • No marks will be given for answers written in a medium other than the authorized one.
  • Word limit in questions, wherever specified, should be adhered to.
  • Diagrams/figures, wherever required, may be drawn in the space provided for answering the question itself.
  • 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.

Questions (page 2)

Section A

Q1. निम्नलिखित पर संक्षिप्त टिप्पणियाँ लिखिए/के उत्तर दीजिए:
Write short notes on/Answer the following:

(a) सदर्न शोषण में संपरीक्षकों का अनुप्रयोग।
Applications of probes in Southern blotting.

(b) केन्द्रकीय रंध्र सम्मिश्र और उसके प्रकार्य।
Nuclear pore complex and its functions.

(c) बी-गुणसूत्रों की संरचना और व्यवहार ।
Structure and behaviour of B-chromosomes.

(d) अतिव्यापी जीन क्यों महत्त्वपूर्ण हैं ? चर्चा कीजिए ।
Why are overlapping genes important? Discuss.

(e) आनुवंशिक अध्ययन में काई-स्क्वायर परीक्षण का वर्णन उसके अनुप्रयोगों के साथ कीजिए ।
Describe Chi-square test and its applications in genetic study.

Section A

Q2.

(a) संकेत पारक्रमण के प्रमुख चरणों की चर्चा कीजिए ।
Discuss major steps in signal transduction.

(b) निम्नलिखित के महत्त्व एवं उपयोगों का वर्णन कीजिए :
(i) नर बंध्यता
(ii) पादप प्रजनन में बहुगुणिता
Describe the significance and uses of the following :
(i) Male sterility
(ii) Polyploidy in plant breeding

(c) पारजीनी प्रौद्योगिकी एक सफल नवाचार है। उदाहरणों के साथ औचित्य सिद्ध कीजिए।
Transgenic technology is a breakthrough innovation. Justify with examples.

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Frequently asked questions

What is the name of the exam?

The exam is the Civil Services (Main) Exam.

Which paper is this question set for?

This is for Botany Paper - II.

What is the conducting body?

The Union Public Service Commission (UPSC) conducts this exam.

In which year was this exam conducted?

The exam was conducted in 2020.

What is the maximum marks for this paper?

The maximum marks for Botany Paper - II is 250.

What is the time allowed for this paper?

The time allowed is Three Hours.

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