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 biology breath and blood of life different types of circulatory systems stomata and transpiration transport in organisms

How many of the following statements are wrong:
(i) Increase in mass and increase in number of individuals are twin characteristics of reproduction.
(ii) In unicellular organisms, reproduction is synonymous with growth.
(iii) Cellular organisation of the body is the defining feature of life forms.
(iv) Photoperiod affects reproduction in seasonal breeders only in plants.
(v) Living organisms are self regulating interactive systems.

  1. 1

  2. 2

  3. 3

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

(i) is wrong: Growth and reproduction are not twin characteristics. (ii) is correct: In unicellular organisms, growth and reproduction are synonymous. (iii) is correct: Cellular organization is a defining feature. (iv) is wrong: Photoperiod affects reproduction in both plants and animals. (v) is correct. Thus, two statements (i and iv) are wrong.

Multiple choice zoology sustainable agriculture microbes and farming biopesticide environmental protection

Viruses of genus Nucleopolyhedrovirus are employed as.

  1. Gobar gas producers

  2. Biological control agents

  3. Anaerobic sludge digesters

  4. Antibiotics

  5. Atmospheric nitrogen fixing agents
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Viruses of genus Nucleopolyhedrovirus , Baculoviruses are species-specific narrow spectrum biocontrol agents for plant pathogens.

Correct answer-B

Multiple choice botany pollination and fertilization types of pollination cross pollination pollination and its types

The phenomenon of male and female structures maturing at two different 

times is ...............

  1. Dichogamy

  2. Heterostyly

  3. Hekrogamy

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

Dichogamy : It is defined as the condition in some flowering plants, in which the pistils and stamens mature at different times, thus preventing self-pollination. In other terms, it is defined as the maturation of male and female parts of a flower at different times, preventing automatic self-pollination.

Multiple choice botany pollination and fertilization types of pollination cross pollination pollination and its types

Dichogamy refers to _________________.

  1. Male and female sex organs maturing at the same time

  2. Male and female sex organs maturing at different times

  3. Male sterility

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

Dichogamy refers to a reproductive strategy in plants where the male and female reproductive organs mature at different times. It can be protandry (male organs mature first) or protogyny (female organs mature first), which effectively promotes cross-pollination.

Multiple choice botany pollination and fertilization types of pollination cross pollination pollination and its types

Self-sterility can be related to which of the following phenomena?

  1. Emasculation

  2. Sexual incompatibility

  3. Cross pollination

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

Incapability of pollen grains of one flower to grow over the stigma of the same flower due to the presence of similar sterile genes is called self-sterility. Which a leads to emasculation, sexual incompatibility, and cross-pollination.

So the correct option is 'Emasculation, Sexual incompatibility, and Cross-pollination'.

Multiple choice

Which of the following is a type of plant reproduction?

  1. Sexual reproduction

  2. Asexual reproduction

  3. Both sexual and asexual reproduction

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

Plants can reproduce both sexually and asexually. Sexual reproduction involves the fusion of two gametes, while asexual reproduction involves the production of new plants from a single parent plant.

Multiple choice

Which of the following is NOT a type of bacterial reproduction?

  1. Binary fission

  2. Conjugation

  3. Transformation

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

Transduction is a process by which bacteria transfer genetic material through the action of a virus.

Multiple choice

Which type of reproduction involves the fusion of two gametes?

  1. Asexual Reproduction

  2. Sexual Reproduction

  3. Binary Fission

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

Sexual reproduction involves the fusion of two gametes, a sperm and an egg, resulting in genetic variation.

Multiple choice

Which type of asexual reproduction involves the formation of buds?

  1. Binary Fission

  2. Fragmentation

  3. Budding

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

Budding is a type of asexual reproduction in which a new organism develops from an outgrowth or bud on the parent organism.

Multiple choice

Which of the following is not a characteristic of living organisms?

  1. Organization

  2. Reproduction

  3. Growth and development

  4. Non-living
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Living organisms are characterized by their ability to organize, reproduce, and grow and develop. Non-living things do not possess these characteristics.

Multiple choice

What is the term used to describe the process by which coral reefs reproduce and create new colonies?

  1. Coral spawning

  2. Coral fragmentation

  3. Coral budding

  4. Coral polyp division
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Coral spawning is the process by which coral reefs reproduce and create new colonies, involving the release of eggs and sperm into the water to form new coral polyps.

Multiple choice

Which of these is a type of asexual reproduction in plants?

  1. Pollination

  2. Fertilization

  3. Budding

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

Budding is a type of asexual reproduction in plants where a new plant grows from an outgrowth or bud on the parent plant.

Multiple choice

The process by which plants reproduce sexually is called:

  1. Photosynthesis

  2. Cellular respiration

  3. Transpiration

  4. Sexual reproduction
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sexual reproduction is the process by which plants reproduce sexually, involving the fusion of male and female gametes.

Multiple choice

What is the role of sexual desire in shaping our sexuality?

  1. Sexual desire can motivate us to engage in sexual behavior

  2. Sexual desire can influence our sexual fantasies

  3. Sexual desire can affect our sexual relationships

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

Sexual desire plays a significant role in shaping our sexuality by motivating us to engage in sexual behavior, influencing our sexual fantasies, and affecting our sexual relationships.