Biology

Biological Reproduction

806 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

Holocarpic mycelium is that in which

  1. a part of mycelium is converted into reproductive structure

  2. entire mycelium is converted into reproductive structure

  3. different sexual strains are not differentiated

  4. no sexually reproducing structures are produced
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Holocarpic mycelium is the one in which the entire thallus gets converted into reproductive body.

Multiple choice

Which hormones initiate the growth of pubic and axillary hair?

  1. hCG

  2. FSH

  3. ACTH

  4. IGF-1

  5. DHEA and DHEA-S
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

In males and females, the adrenal gland produces and secretes increased amounts of several weak androgens during puberty: androstenedione, dehydroepiandrosterone (DHEA) and dehydroepiandrosterone sulfate (DHEA-S). DHEA and DHEA-S are responsible for the commencement of pubic and axillary hair growth.

Multiple choice

Asexual reproduction requires

  1. two individuals of opposite sex

  2. two individuals

  3. one individual, preferably a female

  4. one individuals of any sex
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Reproduction (or procreation) is the biological process by which new offspring individual organisms are produced from their parents. Reproduction is a fundamental feature of all known life; each individual organism exists as the result of reproduction. The known methods of reproduction are broadly grouped into two main types: sexual and asexual. In asexual reproduction, an individual can reproduce without involvement with another individual of that species. The division of a cell into two daughter cells is an example of asexual reproduction. Asexual reproduction is not, however, limited to single-celled organisms. 

Multiple choice

Budding in hydra and yeast occurs by

  1. longitudinal division of parent body into two

  2. transverse division of parent body into two

  3. formation of an outgrowth on the parent body

  4. formation of spores in the parent body
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Budding in hydra and yeast occurs by formation of an outgrowth on the parent body.

Multiple choice

Which of the following statements is/are false?

a. In multiple fission, the parent organism splits to form many new organisms at the same time. b. The bud formed in a hydra is a group of cells, not a single cell. c. A cow that is cloned from a parent cow of high milk yield may or may not be an identical copy of the parent cow.

  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. A cow that is cloned from a parent cow of high milk yield will be an identical copy of the parent cow.