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 botany bacteria bacteria - introduction, shape and structure bacteria: types and structure bacteria; benefits and harmful effects non cellular organism : virus world of virus

Which of the following organisms do not depend on reproduction to exchange genetic information?

  1. Animals

  2. Plants

  3. Bacteria

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

Bacteria have three mechanism for genetic information transfer without undergoing reproduction-
1. Transformation- take up free fragment of DNA floating in medium. 
2. Transduction- transfer of DNA by a virus bacteriophage.
3. Conjugation- direct cell to cell transfer of DNA mediated by plasmid. So, option C is correct, all other options depend on reproduction for exchange of genetic material.

Multiple choice botany bacteria bacteria - introduction, shape and structure bacteria: types and structure bacteria; benefits and harmful effects non cellular organism : virus world of virus

Amoeba and Yeast reproduce asexually by fission and budding respectively, because they are.

  1. Microscopic organisms

  2. Heterotrophic organisms

  3. Unicellular organisms

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

Amoeba and yeast undergo asexual reproduction via fission and budding, respectively, because they are single-celled (unicellular) organisms. Multicellular organisms typically have more complex reproductive strategies.

Multiple choice biology micro - organisms: a wonderful world diseases caused by protozoa protozoan disease protozoa: benefits and harmful effects

A Paramoecium reproduces by 

  1. Budding

  2. Laying eggs

  3. Preparing spores

  4. Cell division
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In Paramoecium, reproduction takes place by binary fission method. At first, micronucleus divides into 2 nuclei by mitosis. The cytopharynx also divides into 2 parts. The cytoplasm is also divided into 2 parts. Then transverse constriction is made from two sides. New contractile vacuoles are formed. The constriction meet at centre and two daughter paramecia reproduced. Thus, the correct answer is option D.

Multiple choice botany leaf - external morphology morphology of leaf structure of a leaf the leaf

Which one of the following statement is correct?

  1. Offspring produced by the asexual reproduction are called clone

  2. Microscopic, motile asexual reproductive structures are called zoospores

  3. In potato, banana and ginger, the plantlets arise from the internodes present in the modified stem

  4. Water hyacinth growing in the standing water drains oxygen from water that leads to the death of fishes
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Potato, banana, ginger grow from the axillary buds of nodes. Axiallary bud develops from the axillary part of leaf.  These buds can expand to form shoots which grow on to make a whole plant or fruits.

So, the correct option is 'In potato, banana and ginger, the plantlets arise from the internodes present in the modified stem'.

Multiple choice botany living world and classification of microbes archaebacteria the three domains of life classification of microbes

Which of the following mode of reproduction can be seen in archae bacteria?

  1. Sexual reproduction

  2. Asexual reproduction

  3. Horizontal gene transfer

  4. Both B and C
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The archaebacteria are the primitive, single-celled, prokaryotic organisms. These bacteria can reproduce through asexual reproduction. The modes of reproduction include binary fission and fragmentation. The cell divides to form two daughter cells through binary fission. The fragments which are produced have the capability to develop into new organisms. 

Thus, the correct answer is option B. 

Multiple choice botany reproduction in angiospermic plants artificial vegetative propagation common modes of vegetative propagation vegetative propagation asexual modes of reproduction

Which one of the following organisms reproduces by asexual method?

  1. Cow

  2. Cat

  3. Sugarcane

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

Cows, cat undergoes sexual reproduction. Peas also undergo sexual reproduction.
Sugarcane are propagated vegetatively, which is an asexual means of reproduction. The propagation of sugarcane is by cutting.
Thus, the correct answer is option (C), 'Sugar cane'

Multiple choice botany reproduction in angiospermic plants artificial vegetative propagation common modes of vegetative propagation vegetative propagation asexual modes of reproduction

Budding and fission are processes used by-

  1. Diocious species.

  2. Hermaphroditic organisms.

  3. Organisms requiring new gene combinations for each generation.

  4. A sexually reproducing species.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Budding and fission are forms of asexual reproduction, which does not involve gamete fusion or new gene combinations.

Multiple choice botany tissue culture common modes of vegetative propagation plant breeding for food production plant tissue culture

In a sexual reproduction, two offspring's have the same genetic material and the same body features are called _______.

  1. Callus

  2. Twins

  3. Clones

  4. Mitosis
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • In sexual reproduction, two offsprings have the same genetic material and the same body features are called identical twins.
  • They are two offspring produced by the same pregnancy.
  • Twins have the same genetic material and the same body features because they develop from a single fertilized egg, they have the same genome.
  • So, the correct answer is 'Twins'.
Multiple choice biology kingdom monera, protista and fungi mycorrhiza classification of fungi useful and harmful microbes

Which form of sexual reproduction can be related to Mucor?

  1. Isogamy

  2. Anisogamy

  3. Oogamy

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Reproduction in Mucor takes place by isogametes. Mucor reproduces both in the sexual and asexual methods. While asexual reproduction takes place by the formation of spores, sexual reproduction takes place by conjugation of isogamy. 

Hence the correct option is A.

Multiple choice biology kingdom monera, protista and fungi mycorrhiza classification of fungi useful and harmful microbes

Heterothallism is found in :

  1. Mucor

  2. Cycas

  3. Selaginella

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

Heterothallic fungi have sexes that reside in different individuals. The term is applied particularly to distinguish heterothallic fungi, which require two compatible partners to produce sexual spores. Mucor is a heterothallic fungi.

So the correct option is A.

Multiple choice biology kingdom monera, protista and fungi mycorrhiza classification of fungi useful and harmful microbes

Zygospore of Mucor is :

  1. Haploid

  2. Thick-wall resting spore

  3. Asexual spore

  4. Spore that germinates to form zoospores
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The zygospore of Mucor is covered by a thick wall and is a resting spore which means it undergoes a resting period, to avoid unfavorable environmental conditions

So, the correct answer is 'Thick-wall resting spore'

Multiple choice biology economic importance of bacteria and fungi common diseases in humans epidemics transmission of diseases

Choose the correct answers from the alternatives given.
A sexual spore produced by a sac fungus is called

  1. mycelium

  2. conidium

  3. ascospore

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

Ascomycota members include molds that have septate hyphae and some yeasts which are called sac fungi because their sexual spores, called ascospores, are produced in a sac or ascus.

So, the correct option is 'ascospore'.