NEET UG Cell Biology – Topic Test
NEET UG Cell Biology – Topic Test is an online topic test in the NEET UG pattern, covering Cell Biology. Attempt it on SeatBeat with a timer like the real exam, then see a detailed solution for every question and your score and weak-topic analysis.
Topics in this test
| Topic | Questions |
|---|---|
| Cell Biology | 30 |
Difficulty: 15 medium · 15 hard
Cell Biology MCQ questions with answers
The first 3 of 30 questions. Unlock the series for the rest, each with a solution.
Q1. During active protein synthesis, several ribosomes may be found attached to a single strand of messenger RNA. Such a cluster of ribosomes is called a:
सक्रिय प्रोटीन संश्लेषण के दौरान, एकल संदेशवाहक RNA (mRNA) की एक लड़ी से कई राइबोसोम जुड़े हुए पाए जा सकते हैं। राइबोसोमों के ऐसे समूह को कहते हैं:
- A. Polysome / पॉलीसोम
- B. Dictyosome / डिक्टियोसोम
- C. Nucleosome / न्यूक्लिओसोम
- D. Lysosome / लाइसोसोम
Solution
A group of several ribosomes simultaneously translating one mRNA molecule is called a polysome (polyribosome).
एक ही mRNA अणु का एक साथ अनुवाद करने वाले कई राइबोसोमों के समूह को पॉलीसोम (पॉलीराइबोसोम) कहते हैं।
Q2. A bivalent (tetrad) formed during prophase I of meiosis consists of:
अर्धसूत्री विभाजन की पूर्वावस्था I (प्रोफेज I) के दौरान बना द्विसंयोजक (बाइवैलेंट/टेट्रैड) किससे मिलकर बनता है?
- A. 2 chromosomes and 4 chromatids / 2 गुणसूत्र और 4 क्रोमैटिड
- B. 2 chromosomes and 2 chromatids / 2 गुणसूत्र और 2 क्रोमैटिड
- C. 4 chromosomes and 2 chromatids / 4 गुणसूत्र और 2 क्रोमैटिड
- D. 4 chromosomes and 4 chromatids / 4 गुणसूत्र और 4 क्रोमैटिड
Solution
A bivalent is a pair of synapsed homologous chromosomes; since each replicated chromosome has two sister chromatids, the bivalent has 2 chromosomes and 4 chromatids (hence the name tetrad).
द्विसंयोजक समजात गुणसूत्रों का सूत्रयुग्मित (synapsed) युग्म होता है; चूँकि प्रत्येक प्रतिकृत गुणसूत्र में दो सहोदर क्रोमैटिड होते हैं, द्विसंयोजक में 2 गुणसूत्र और 4 क्रोमैटिड होते हैं (इसीलिए इसे टेट्रैड कहते हैं)।
Q3. The spindle fibres attach to the chromosomes at disc-shaped structures called kinetochores. These kinetochores are located at the:
तर्कु तंतु (स्पिंडल फाइबर) गुणसूत्रों से चक्रिका-आकार की संरचनाओं पर जुड़ते हैं जिन्हें काइनेटोकोर कहते हैं। ये काइनेटोकोर कहाँ स्थित होते हैं?
- A. Satellite / सैटेलाइट
- B. Centromere / सेंट्रोमियर
- C. Secondary constriction / द्वितीयक संकीर्णन
- D. Telomere / टेलोमियर
Solution
Kinetochores are protein complexes assembled on the centromere of each chromosome; spindle microtubules bind here to move the chromosomes.
काइनेटोकोर प्रत्येक गुणसूत्र के सेंट्रोमियर पर संयोजित प्रोटीन संकुल होते हैं; तर्कु सूक्ष्मनलिकाएँ यहीं जुड़कर गुणसूत्रों को गति प्रदान करती हैं।
Frequently asked questions
How many questions are in the NEET UG Cell Biology – Topic Test?
30 questions for 30 marks, to be answered in 30 minutes.
Is there negative marking in the NEET UG Cell Biology – Topic Test?
Yes — 0.25 marks are deducted for each wrong answer, as in the real exam pattern.
Which topics does the NEET UG Cell Biology – Topic Test cover?
Cell Biology (30 questions).
Is the NEET UG Cell Biology – Topic Test free?
It is part of the NEET UG 2027 Mock Test Series (134 tests, ₹299). You can first try Biology in Human Welfare – Topic Test for free.
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