Biology

Biological Reproduction

762 Questions

Biological reproduction encompasses processes like asexual and sexual reproduction, alternation of generations, and specific mechanisms in plants and fungi. This topic is fundamental for biology paper preparation in various competitive exams. Practice these questions to solidify your understanding.

Asexual reproduction structuresPlant and fungi life cyclesCloning and fertilizationReproductive terminology

Biological Reproduction Questions

Multiple choice

Asexual reproduction and sexual reproduction are the two main methods of reproduction in living organisms. Which of the following is not a property of asexual reproduction?

  1. In it, a part of the parent organism separates off and grows into a new organism.

  2. Only one parent is needed to produce a new organism.

  3. Sex cells are involved in this type of reproduction.

  4. It is the simplest method of reproduction.

  5. The young ones are the exact copy of the parent.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option as this is not a property of asexual reproduction. No sex cells are involved in asexual reproduction.

Multiple choice

What is binary fission?

  1. Organism divides and forms two daughter cells.

  2. The nucleus of the parents undergoes repeated divisions to produce many daughter nuclei.

  3. Organism breaks up into many pieces upon maturation.

  4. Ability to give rise to new individual organisms from their body parts.

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In binary fission, organism divides and forms two daughter cells.

Multiple choice

Which of the following statements is/are correct?

a. In fragmentation, a multicellular organism breaks up to form two or more daughter organisms. b. Fragmentation in organisms occurs upon maturity. c. Sea anemones reproduce by fragmentation.

  1. a, b and c

  2. a and b

  3. a and c

  4. b and c

  5. a only
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 In fragmentation, a multicellular organism breaks up to form two or more daughter organisms. Fragmentation in organisms occurs upon maturity.

Multiple choice

Sexual reproduction leads to

  1. genetic recombination

  2. polyploidy

  3. aneuploidy

  4. euploidy
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Genetic recombination is the transmission of genetic traits by which the combinations of alleles observed at different loci in two parental individuals become shuffled in offspring individuals. This is the consequence of sexual reproduction.

Multiple choice

Which of the following is not the case of epimorphosis?

  1. Formation of sperms from small clumps of cells.

  2. Regeneration of tail in lizard.

  3. Replacement of severed arm in starfish.

  4. Replacement of limb in salamander.

  5. -
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Epimorphosis is the regeneration of tissues or organs through the dedifferentiation of existing and differentiated adult tissues. Adult cells dedifferentiate into a mass of cells that redifferentiates into a new structure. This is not the case of epimorphosis.

Multiple choice

Binary fission is a mode of

  1. micropropagation

  2. vegetative propagation

  3. macropropagation

  4. sexual reproduction

  5. -
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Binary fission results in the reproduction of a living prokaryotic cell (or organelle) by dividing the cell into two parts, each with the potential to grow to the size of the original.

Multiple choice

The changes occurring in organisms which only reproduce vegetatively are

  1. genetic

  2. morphological

  3. both genetic and morphological

  4. neither genetic nor morphological

  5. -
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vegetative propagation is a form of asexual reproduction of a plant. Only one plant is involved and the offspring is the result of one parent. The new plant is genetically identical to the parent.