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 general knowledge science & technology

Biogenesis is a term in biology that is derived from two Greek words meaning what?

  1. Reproduction and Repair

  2. Life and Death

  3. Life and Birth

  4. Life and Growth
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Biogenesis comes from Greek 'bios' (life) and 'genesis' (birth/origin), referring to the principle that life arises from pre-existing life. The other options pair life with unrelated concepts - death is the opposite of life, reproduction and repair are biological processes, and growth is a characteristic of life.

Multiple choice general knowledge

Aphids can never reproduce.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Aphids reproduce prolifically through both sexual and asexual reproduction (parthenogenesis). Some species can produce dozens of generations per year. The statement 'aphids can never reproduce' is absurdly false. B is correct.

Multiple choice

What is the mode of sexual reproduction in the fungi Phytophthora & Albugo?

  1. Planogametic copulation

  2. Gametangial contact

  3. Gametangial copulation

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

In the process of gametangial contact, gamete carrying the structures called gametangia come closer to each other and develop a fertilisation tube through which the male gamete migrates into the female gametangium.Eg. Phytophthora & Albugo.

Multiple choice

During adverse condition, which of the following modes of reproduction is utilised by cyanobacteria?

  1. Akinete formation

  2. Hormogonia formation

  3. Hormocysts

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

Most filamentous cyanobacteria develop piercing dormant structures in adverse condition. These structures are larger than the vegetative cells, equipped with thick walls, and are called akinetes. When favourable conditions return, they germinate and produce new filaments.

Multiple choice

Which of the following statements is/are false?

a. Reproduction is a means of perpetuation of species. b. Seeds are formed by the fusion of a male gamete with a female gamete. c. Any type of reproduction that does not involve the union of gametes is called sexual reproduction.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option as this statement is false. Any type of reproduction that does not involve the union of gametes is called asexual reproduction.

Multiple choice

Match the following:

 
a. Asexual reproduction 1. It is the reproduction that involves the fusion of gametes.
b. Sexual reproduction 2. It is the asexual method of reproduction in plants where vegetative parts are used to grow new plants.
c. Vegetative reproduction 3. It is the reproduction that does not involve the union of gametes.

  1. a - 3, b - 2, c - 1

  2. a - 3, b - 1, c - 2

  3. a - 1, b - 3, c - 2

  4. a - 1, b - 2, c - 3

  5. a - 2, b - 1, c - 3
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option. Asexual reproduction is the reproduction that does not involve the union of gametes. Sexual reproduction is the reproduction that involves the fusion of gametes. Vegetative reproduction is the asexual method of reproduction in plants where vegetative parts are used to grow new plants.

Multiple choice

Match the following:

 
a. Binary fission 1. It is the asexual mode of reproduction in which a small outgrowth appears on the body of the organism.
b. Budding 2. It is the asexual mode of reproduction in which an organism divides into two daughter organisms of equal size.
c. Regeneration 3. It is the asexual mode of reproduction in which organisms grow lost parts or repair themselves.

  1. a - 3, b - 1, c - 2

  2. a - 1, b - 3, c - 2

  3. a - 1, b - 2, c - 3

  4. a - 2, b - 1, c - 3

  5. a - 2, b - 3, c - 1
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct option. Binary fission is the asexual mode of reproduction in which an organism divides into two daughter organisms of equal size. Budding is the asexual mode of reproduction in which a small outgrowth appears on the body of the organism. Regeneration is the asexual mode of reproduction in which organisms grow lost parts or repair themselves.

Multiple choice

Paratomy is a form of

  1. sexual reproduction

  2. asexual reproduction

  3. vegetative reproduction

  4. behavior in which an animal sheds or discards one or more of its own appendages
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Paratomy is a form of asexual reproduction in animals where the organism splits in a plane perpendicular to the antero-posterior axis and the split is preceded by the pregeneration of the anterior structures in the posterior portion.