Which of the following is a symbiotic nitrogen fixer? | Agrigyan

Q.1

ICAR AIEEA PG 2024 - Plant Biotechnology (Q.48)

MCQ (Single Correct) +4 −1

The type of chromosome in which the centromere is located at the end of the chromosome is known as:

वह गुणसूत्र जिसमें सेंट्रोमियर (Centromere) गुणसूत्र के बिल्कुल सिरे (अंत) पर स्थित होता है, क्या कहलाता है?

Acrocentric एक्रोकेन्द्रिक / अग्रकेंद्रिक Telocentric टिलोकेन्द्रिक / अंत्यकेंद्रिक Metacentric मेटाकेन्द्रिक / मध्यकेंद्रिक Subterminal सबटर्मिनल / उप-अंत्य

Q.2

ICAR AIEEA PG 2024 - Plant Biotechnology (Q.70)

MCQ (Single Correct) +4 −1

Which of the following is a symbiotic nitrogen fixer?

निम्नलिखित में से कौन एक सहजीवी नाइट्रोजन स्थिरीकरणकर्ता (Symbiotic nitrogen fixer) है?

Ensifer fredii एन्सिफर फ्रेडी / साइनोराइजोबियम फ्रेडी Acetobacter diazotrophicus Acetobacter diazotrophicus Azospirillum lipoferum Azospirillum lipoferum Pseudomonas marginalis Pseudomonas marginalis

Q.3

ICAR AIEEA PG 2024 - Plant Biotechnology (Q.71)

MCQ (Single Correct) +4 −1

In both mitosis and meiosis, sister chromatids separate during anaphase. But the number of haploid and diploid cells produced by meiosis and mitosis are:

समसूत्री (Mitosis) और अर्धसूत्री (Meiosis) दोनों विभाजनों में एनाफेज के दौरान सिस्टर क्रोमैटिड अलग होते हैं। लेकिन अर्धसूत्री और समसूत्री विभाजन द्वारा उत्पादित अगुणित (Haploid) और द्विगुणित (Diploid) कोशिकाओं की संख्या क्रमशः क्या है?

6 and 3 6 and 3 4 and 2 4 and 2 2 and 4 2 and 4 3 and 6 3 and 6

Q.4

ICAR AIEEA PG Plant Biotechnology 14 July 2023 Shift-1 Paper (Q.48)

MCQ (Single Correct) +4 −1

Which of the following is correct statement for Genetic Code:
(A). It uses ribonucleotide bases to make a codon.
(B). It uses deoxyribonucleotide bases to make a codon.
(C). A single coding dictionary is used by almost all viruses, prokaryotes, archaea, and eukaryotes.
(D). During translation, the codons are read one after the other with no breaks between them until a stop signal is found.
Choose the correct answer from the options given below:

आनुवंशिक कोड के लिए

निम्नलिखित में से कौन सा कथन सही है:
(A). यह कोडॉन बनाने के लिए राइबोन्यूक्लियोटाइड बेस का उपयोग करता है।
(B). यह कोडॉन बनाने के लिए डीऑक्सीराइबोन्यूक्लियोटाइड बेस का उपयोग करता है।
(C). लगभग सभी वायरस, प्रोकैरियोट्स, आर्किया और यूकैरियोट्स द्वारा एक ही कोडिंग डिक्शनरी का उपयोग किया जाता है।
(D). अनुवादन के दौरान, कोडॉन एक के बाद एक बिना किसी विराम के पढ़े जाते हैं जब तक कि कोई स्टॉप सिग्नल न मिल जाए।
नीचे दिए गए विकल्पों में से सही उत्तर का चयन कीजिए:

(A), (C) and (D) only. केवल (A), (C) और (D) (A), (B) and (C) only. केवल (A), (B) और (C) (B), (C) and (D) only. केवल (B), (C) और (D) (A), (B) and (D) only. केवल (A), (B) और (D)

Universal features of the genetic code:

True: Genetic codons reside on messenger RNA (mRNA) and are composed of triplets of ribonucleotide bases (A, U, G, C).
False: Codons are read from mRNA ribonucleotides, not deoxyribonucleotides.
True: The genetic code is nearly universal across viruses, bacteria, archaea, and higher eukaryotes (with rare minor mitochondrial variations).
True: The code is commaless and contiguous; translation proceeds triplet by triplet without pauses or skipped bases until a stop codon (UAA, UAG, UGA) is reached.

Therefore, statements (A), (C), and (D) only are correct.

आनुवंशिक कोड की विशेषताएं:

सत्य: आनुवंशिक कोडॉन mRNA पर स्थित होते हैं और तीन राइबोन्यूक्लियोटाइड क्षारकों (A, U, G, C) से बने होते हैं।
असत्य: यह डीऑक्सीराइबोन्यूक्लियोटाइड नहीं बल्कि राइबोन्यूक्लियोटाइड पर आधारित होता है।
सत्य: आनुवंशिक कोड सार्वभौमिक (Universal) होता है और लगभग सभी विषाणुओं, जीवाणुओं एवं उच्च जीवों में समान रूप से लागू होता है।
सत्य: आनुवंशिक कोड अल्पविरामरहित (Commaless) होता है और अनुवादन के दौरान लगातार एक सिरे से दूसरे सिरे तक बिना रुके पढ़ा जाता है।

अतः केवल कथन (A), (C) और (D) सही हैं।

Explanation not matching this question? क्या व्याख्या इस प्रश्न से मेल नहीं खा रही? Report

Q.5

ICAR AIEEA PG Plant Biotechnology 14 July 2023 Shift-1 Paper (Q.70)

MCQ (Single Correct) +4 −1

The first crop plant genome sequenced was:

अनुक्रमित किया जाने वाला पहला फसल पौधा जीनोम कौन सा था?

Tomato टमाटर Wheat गेहूं Rice चावल Barley जौ

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Carbohydrate Metabolism: Glycolysis, Fermentation, Pentose Phosphate Pathway and TCA Cycle Lipids, Fatty Acid Classification, Triglyceride and Membrane Lipid Biosynthesis Amino Acids, Peptides and Structural Organization of Proteins Enzymology: Classification, Catalytic Mechanisms, Active Sites and Allosteric Kinetics Nitrogen Assimilation: Nitrate Reductase, GS-GOGAT Pathway and Biological Nitrogen Fixation Analytical Biochemical Techniques: Chromatography, Electrophoresis, Centrifugation and Spectroscopy Acid-Base Balance, Buffers, Thermodynamics and Cell Bioenergetics Mitochondrial Electron Transport Chain, Oxidative Phosphorylation and Inhibitors Vitamins, Coenzymes and Trace Minerals in Biochemical Catalysis Lipid Catabolism: Fatty Acid Activation, Beta-Oxidation and Glyoxylate Cycle Chemistry, Structure and Stereochemistry of Carbohydrates Secondary Plant Metabolites: Phenolics, Terpenoids, Alkaloids and Shikimate Pathway

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ICAR AIEEA PG 2024 - Plant Biotechnology

120 Questions Bilingual

ICAR AIEEA PG Plant Biotechnology 14 July 2023 Shift-1 Paper

120 Questions Bilingual

ICAR AIEEA PG Plant Biotechnology 09 July 2023 (Shift 1) Paper

120 Questions Bilingual

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