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RRB JE · General Science

Biology: Cell & Genetics Previous Year Questions

19 Biology: Cell & Genetics (General Science) questions asked in RRB JE previous year papers, each with the correct answer and explanation. Read them free on UTpaper, or attempt the full papers as timed online tests.

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Other General Science topics

Physics: Electricity & Magnetism 59Physics: Light & Sound 32Chemistry: Acids, Bases & Salts 28Chemistry: Reactions 28Physics: Motion & Force 21Physics: Heat 18Biology: Plants 17Chemistry: Atoms & Periodic Table 12Biology: Nutrition & Diseases 11Chemistry: Carbon & Compounds 8
Q1RRB JE CBT-1, 18 Dec 2024, Shift 3 (4:30 PM)
Which of the following is NOT true about fragmentation?
  1. AIt requires the organism to be multicellular.
  2. BEach fragment can grow into a complete individual.
  3. CIt involves breaking of the organism into parts.
  4. DIt is a form of sexual reproduction.
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Correct answer: (D) It is a form of sexual reproduction.

Q2RRB JE CBT-1, 18 Dec 2024, Shift 3 (4:30 PM)
Which of the following is the female germ cell in plants?
  1. ACells outside the ovule
  2. BCells in the centre of ovule
  3. CEgg cell
  4. DCell opposite to egg cell in an ovule
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Correct answer: (C) Egg cell

Q3RRB JE CBT-1, 18 Dec 2024, Shift 2 (12:45 PM)
Which process ensures half the amount of DNA in reproductive cells as compared to non-reproductive cells?
  1. AAmitosis
  2. BMeiosis
  3. CCytokinesis
  4. DMitosis
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Correct answer: (B) Meiosis

Q4RRB JE CBT-1, 18 Dec 2024, Shift 2 (12:45 PM)
Which of the following modes of asexual reproduction is used by unicellular organisms exclusively?
  1. ARegeneration
  2. BBinary fission
  3. CFragmentation
  4. DSporulation
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Correct answer: (B) Binary fission

Q5RRB JE CBT-1, 17 Dec 2024, Shift 2 (12:45 PM)
Which of the following is true about asexual reproduction?
  1. AIt results in offspring genetically identical to the parent.
  2. BIt requires complex reproductive organs.
  3. CIt requires fertilisation.
  4. DIt involves two parent organisms.
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Correct answer: (A) It results in offspring genetically identical to the parent.

Q6RRB JE CBT-1, 17 Dec 2024, Shift 2 (12:45 PM)
What are the number of chromosomes in a human male germ cell?
  1. A46 pairs of Chromosomes
  2. B23 pairs of Chromosomes
  3. C23 Chromosomes
  4. D46 Chromosomes
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Correct answer: (C) 23 Chromosomes

Q7RRB JE CBT-1, 17 Dec 2024, Shift 1 (9:00 AM)
The first fundamental factor for evolution is:
  1. Agenetic variation
  2. Bhealthy offsprings
  3. Ccell division for growth
  4. Dcompetition among individuals
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Correct answer: (A) genetic variation

Q8RRB JE CBT-1, 17 Dec 2024, Shift 1 (9:00 AM)
What are the two versions of a gene controlling a trait called?
  1. AProteins
  2. BChromosomes
  3. CMutations
  4. DAlleles
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Correct answer: (D) Alleles

Q9RRB JE CBT-1, 17 Dec 2024, Shift 1 (9:00 AM)
What is the role of the ovary in the process of fertilisation in plants?
  1. ATo produce the egg cell
  2. BTo produce pollen
  3. CTo store the male gametes
  4. DTo provide nutrients to the pollen grains
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Correct answer: (A) To produce the egg cell

Q10RRB JE CBT-1, 16 Dec 2024, Shift 3 (4:30 PM)
Which of the following is true regarding the bud development process in Hydra?
  1. ACell divisions at one site
  2. BFormation of spore
  3. CSplitting of cytoplasm
  4. DSplitting of nucleus
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Correct answer: (A) Cell divisions at one site

Q11RRB JE CBT-1, 16 Dec 2024, Shift 3 (4:30 PM)
What is the final product of sexual reproduction in plants?
  1. ALeaves
  2. BSeeds
  3. CFlowers
  4. DFruits
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Correct answer: (B) Seeds

Q12RRB JE CBT-1, 16 Dec 2024, Shift 3 (4:30 PM)
Which of the following is called a motile germ cell?
  1. AMale gamete
  2. BFemale gamete
  3. CEmbryo
  4. DZygote
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Correct answer: (A) Male gamete

Q13RRB JE CBT-1, 16 Dec 2024, Shift 1 (9:00 AM)
What are regenerative cells used by Hydra for?
  1. AHydra uses regenerative cells for reproduction by sexual reproduction.
  2. BHydra uses regenerative cells for reproduction by spore formation.
  3. CHydra uses regenerative cells for reproduction by fragmentation.
  4. DHydra uses regenerative cells for reproduction by budding.
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Correct answer: (D) Hydra uses regenerative cells for reproduction by budding.

Q14RRB JE CBT-1, 16 Dec 2024, Shift 1 (9:00 AM)
If a child inherits an Y chromosome from the father, what will be the sex of the child?
  1. AFemale
  2. BMale
  3. CHermaphrodite
  4. DCannot be determined
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Correct answer: (B) Male

Q15RRB JE CBT-1, 20 Feb 2026, Shift 3 (4:30 PM)
Which of the following types of connective tissue is present in the larynx of a human body?
  1. AAreolar
  2. BAdipose
  3. CLigament
  4. DCartilage
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Correct answer: (D) Cartilage

Q16RRB JE CBT-1, 20 Feb 2026, Shift 2 (12:45 PM)
Which of the following is an example of membrane bound little structures present in a cell?
  1. ACytoplasm
  2. BLysosome
  3. CNucleoplasm
  4. DRibosome
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Correct answer: (B) Lysosome

Q17RRB JE CBT-1, 20 Feb 2026, Shift 2 (12:45 PM)
Chloroplast is present in which of the following parts of a cell?
  1. ANucleoplasm
  2. BPeroxisome
  3. CCytoplasm
  4. DEndoplasmic reticulum
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Correct answer: (C) Cytoplasm

Q18RRB JE CBT-1, 19 Feb 2026, Shift 3 (4:30 PM)
The nucleus contains chromosomes, which appear as rod-shaped structures only when the cell is about to divide. These chromosomes are composed of _____.
  1. ARNA and lipids
  2. BAmino acids and carbohydrates
  3. CDNA and proteins
  4. DGlucose and enzymes
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Correct answer: (C) DNA and proteins

Q19RRB JE CBT-1, 19 Feb 2026, Shift 1 (9:00 AM)
Which cell organelle is responsible for the manufacture of lipids in the cell?
  1. ARough Endoplasmic Reticulum
  2. BGolgi Apparatus
  3. CMitochondria
  4. DSmooth Endoplasmic Reticulum
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Correct answer: (D) Smooth Endoplasmic Reticulum

How to use these RRB JE General Science questions

Every question here was asked in a real RRB JE paper; the paper and shift are shown on the card, and the number opens the question on its own page. Try each one before tapping Show answer, then attempt the full RRB JE papers as timed tests to check your speed under exam conditions.

More RRB JE subjects

Mathematics 561General Awareness 379Reasoning 316Environment & Pollution Control 18