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

What is the mode of reproduction in hydra ?

  1. Binary fission

  2. Multiple fission

  3. Budding

  4. Regeneration
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hydra reproduces asexually through budding, where a small outgrowth develops into a new individual. Binary fission occurs in protozoans, while regeneration refers to regrowing lost body parts.

Multiple choice

Which of the following organisms reproduces by multiple fission ?

  1. Amoeba

  2. Plasmodium

  3. Hydra

  4. Man
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Multiple fission involves one parent dividing into many daughter cells simultaneously. Plasmodium, the malaria parasite, reproduces by multiple fission called schizogony in its human host. Amoeba typically uses binary fission (splits into two), not multiple fission. Hydra reproduces by budding, and humans by sexual reproduction.

Multiple choice

Name the process of development of new individual by unfertilised egg.

  1. Micro propagation

  2. Budding

  3. Parthenogenesis

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Parthenogenesis is development of an embryo from an unfertilized egg, producing offspring that are usually female clones. Micropropagation is tissue culture. Budding is outgrowth from parent. 'None of these' is incorrect as parthenogenesis is the correct answer.

Multiple choice

During favourable conditions, amoeba reproduces by _____.

  1. binary fission

  2. multiple fission

  3. both of these

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Amoeba primarily reproduces by binary fission during favorable conditions, dividing into two daughter cells. Multiple fission (dividing into many) is less common and typically occurs under stress. Binary fission is faster and requires less energy.

Multiple choice

Cryptogams reproduce by means of

  1. pores

  2. spores

  3. discs

  4. seeds
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cryptogams, which include algae, bryophytes, and pteridophytes, reproduce through spores rather than seeds. The term literally means 'hidden marriage,' referring to their reproductive structures that are not visible as flowers or seeds like phanerogams.