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 zoology plant reproduction different modes of reproduction sexual and asexual reproduction lifespan, reproduction and variation

Meiosis is a must in asexual reproduction.

  1. True

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

Meiosis does not occur during asexual reproduction. Meiosis is the process of producing gametes which is occur in sexual reproduction. On the other hand, mitosis is simply the process of cell division in asexual reproduction. This is the process that animals are going through during regeneration. 

So, the correct option is 'False'.

Multiple choice biology life processes: reproduction, growth and development different types of reproduction reproductive health of humans need of family planning

From the names given in the above box how many are not associated with asexual reproduction? 

$\boxed {\begin{matrix} Zoospore, & Conidia, & Tuber, \ Offset. & Pollen & Zygote  \end{matrix}} $

  1. Three

  2. Two

  3. Four

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

Tuber, Offset and Conidia are asexual spores while Zoospore, Pollen and Zygote are sexually produced.

So, the correct option is 'Three'.

Multiple choice biology life processes: reproduction, growth and development different types of reproduction reproductive health of humans need of family planning

Assertion : Asexual reproduction is also called blastogenesis.

Reason : In asexual reproduction there is no formation and fusion and fusion of gametes.

  1. Both Assertion and Reason are true and Reason is a correct explanation of Assertion

  2. Both Assertion and Reason are true but Reason is not a correct explanation of Assertion

  3. Assertion is true but Reason is false

  4. Both Assertion and Reason are false

  5. Assertion is false but reason is true.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Development of an organism from non-sexual reproductive units like buds fragments etc is called blastogenesis. In asexual reproduction there is no formation and fusion of gametes.

Multiple choice biology life processes: reproduction, growth and development different types of reproduction reproductive health of humans need of family planning

The uniparental reproduction is called _______ reproduction while biparental reproduction is termed _________ reproduction. Higher organisms mostly show ________ reproduction.

  1. Sexual, asexual, sexual

  2. Asexual, sexual, asexual

  3. Asexual, sexual, sexual

  4. Sexual, asexual, asexual
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Asexual reproduction is a type of reproduction which involves a single parent. The offsprings are genetically identical to each other and to the parent. All prokaryotes and some eukaryotes reproduce this way. Sexual reproduction involves two parents. In sexual reproduction, parents produce reproductive cells—called gametes—that unite to form an offspring. Sexual reproduction is by far the most common life cycle in eukaryotes, for example, animals and plants.

Thus, the correct option is 'Asexual, sexual, sexual.'

Multiple choice biology structure of chromosome, cell cycle and cell division cell division in embryo development mitosis division for growth and reproduction

The method of reproduction in unicellular organisms like amoeba and bacteria in which they split into two equal halves and produce new ones is called ............

  1. Fragmentation

  2. Binary fission

  3. Budding

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

In binary fission, parent cell divides into two equal halves called daughter cells. Daughter cells are identical to each other and to their parent cell. Organisms like the amoeba, bacteria, euglena, etc. exhibit binary fission. During multiple fission, the organism divides itself into numerous daughter cells.

So, B is the correct option.

Multiple choice zoology reproduction in animals different modes of reproduction sexual and asexual reproduction lifespan, reproduction and variation

Sexual reproduction involves formation of the male and female gametes by?

  1. Same individuals

  2. Different individuals of the opposite sex

  3. Different individual of the same sex

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

Gametes are the cells that merge with each other to create a unique organism during sexual reproduction. Gametes are the reproductive cells used to make a new organism called a zygote during sexual reproduction. There are distinct gametes in men and women. The sperm is called the male gamete. It's much lower and very mobile than the female gamete. It has a lengthy tail, flagellum, which makes it possible to move towards the female gamete. The egg or ova is called the female gamete. It's much bigger than the sperm and it's not moving

Multiple choice zoology reproduction in animals different modes of reproduction sexual and asexual reproduction lifespan, reproduction and variation

Which of the following statements can be related to sexual reproduction?

  1. Gametes are usually haploid.

  2. Gametes are usually diploid.

  3. The zygote is usually haploid.

  4. The chromosome number is reduced during mitosis.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sexual reproduction in higher organisms is characterized by the formation of haploid gametes and their fertilization. The haploid gametes are produced by meiosis which has a half number of chromosomes as compared to the parent cell. It is also known as the reductional division. The haploid gametes obtained from both the parent fuse to form a diploid zygote. Mitosis is an equational division so it will not lead to the reduction in the chromosome.

So, the correct answer is option A.

Multiple choice zoology reproduction in animals different modes of reproduction sexual and asexual reproduction lifespan, reproduction and variation


In the sexual mode of reproduction, greater diversities are generated.

  1. True

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

The given statement is true. The daughter cells produced by asexual reproduction are similar to their parent i.e., they are genetically identical to their parent. In contrast, sexual reproduction produces a similar but genetically different offspring. In the process of sexual reproduction, haploid gametes produced by the meiotic division fuses to form a diploid zygote. A child inherits half of the genetic material from each parent. So, it may be they look alike but they are not identical to their parents. Instead, the child has the combination of characteristics inherited from both parents. Therefore, we can say that in sexual mode of reproduction, greater diversities are generated.

Multiple choice biology for the continuity of generation fertilization in human being fertilization in humans human fertilization

Zygote is formed by the process of

  1. Anisogamy

  2. Isogamy

  3. Oogamy

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

The process of fusion between a haploid male nucleus and an egg nucleus is known as amphimixis. It is also known as syngamy or fertilization which leads to formation of a diploid zygote. It leads to the recombination of character which causes variation. It is a mode of sexual reproduction.

A single sperm fuses with the ova and releases its nuclei and cellular contents in the ovum. The condition when the multiple sperm fuses with a single ovum is known as polyspermy.
So, the correct answer is option D.

Multiple choice biology for the continuity of generation fertilization in human being fertilization in humans human fertilization

The only haploid stage in an animal life cycle is the

  1. Zoospores

  2. Spores

  3. Gametes

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

A zoospore is a motile asexual spore that uses a flagellum for locomotion.
Spores are formed by certain fungi and algae, in response to unfavorable growing conditions.
A gamete is a reproductive cells that unite at fertilization to form a new cell (zygote). This gamete is haploid in nature.
Thus, the correct answer is option C.

Multiple choice biology for the continuity of generation fertilization in human being fertilization in humans human fertilization

Which of the following is the correct sequence?

  1. $Gametogenesis \rightarrow Syngamy \rightarrow Embryogenesis \rightarrow Zygote$
  2. $Gametogenesis \rightarrow Syngamy \rightarrow Zygote \rightarrow Embryogenesis$
  3. $Syngamy \rightarrow Gametogenesis \rightarrow Embryogenesis \rightarrow Zygote$
  4. $Zygote \rightarrow Embryogenesis \rightarrow Syngamy \rightarrow Gametogenesis$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The male gamete is formed by spermatogenesis. The female gamete is formed by oogenesis. This process of formation of male and female gametes is called gametogenesis. Syngamy is a process in sexual reproduction that is defined as the fusion of the male gamete i.e., sperm with the female gamete i.e., egg resulting in the formation of a diploid zygote. Embryogenesis takes place eight weeks after fertilization. Thus the correct answer is option B.

Multiple choice biology for the continuity of generation fertilization in human being fertilization in humans human fertilization

If there is no formation of egg cell during the development of ovule, then after fertilization which of the following structure will not develop?

  1. Embryo

  2. Endosperm

  3. Seed

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

After fertilization in plant, ovule develops into the seed.  Fertilized egg get segmented and lined by the cell-membrane which forms plant-embryo. Thus, the correct answer is option A.

Multiple choice biology biodiversity and classification animal classification and its benefits criteria for new system of classification five kingdoms of living organisms

Sexual maturity of larva is called as 

  1. Paedogenesis

  2. Parthenogenesis

  3. Parthenocarpy

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

The attainment of sexual maturity with the retention of at least some larval morphology and reproduction of larval individuals is known as paedogenesis. Hence, the correct answer is option A.

Multiple choice biology reproduction in higher plants growth and development in plants sexual reproduction in plants post fertilization - plants

Parthenogenesis is the development of

  1. Fruit without hormones

  2. Fruit without fertilisation

  3. Egg without fertilisation

  4. Embryo without fertilisation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Parthenogenesis is a type of asexual reproduction in which the offspring develops from unfertilized eggs. It is particularly common among arthropods and can also be found in some species of fish, amphibians, birds and reptiles, but not in mammals. 

Therefore, the correct answer is option C.