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

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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

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