Question

Parthenogenesis is a term of
A. Sexual reproduction
B. Asexual reproduction
C. Budding
D. Regeneration

Answer 1

Hint: Parthenogenesis is also known as incomplete reproduction. It occurs in plants of lower division. Here the male gametes and female gametes are formed but fusion does not take place. The resulting offspring is a haploid and identical to the female organism. Parthenogenesis also occurs in some invertebrates like bees and insects. In mammals, parthenogenesis can be artificially stimulated to produce identical offspring.

Complete explanation:
Option A sexual reproduction: Sexual reproduction is a process where two parents are involved in producing the offspring. Here the fusion of gametes or sex cells from each parent occur. Sexual reproduction is seen in superior species. It brings variation and evolution. In parthenogenesis, fusion of gametes does not occur and hence this option is not correct
Option A is incorrect.
Option B asexual reproduction: Asexual reproduction is a type of reproduction in which a new offspring is produced by a single parent. The resulting offspring is haploid in nature and are genetically and physically identical to each other. Parthenogenesis is a type of asexual reproduction where the offspring is produced from a single parent.
Option B is correct.
Option C budding: It is a type of asexual reproduction. In this process, a new organism is developed from a small part of its parent’s body. The bud which is formed detaches from its parent and develops into a new organism. Parthenogenesis and Budding are not related.
Option C is incorrect.
Option D regeneration: Regeneration is the process by which plants or some organisms replace or restore lost body parts. Regeneration is not related to parthenogenesis.
Option D is incorrect.

Hence, Option B. Asexual reproduction is correct answer.

Note:
Parthenogenesis occurs naturally but can also be stimulated artificially in labs. It has many significance in nature. Since there is no fusion of gametes, variation does not occur. It is one of the most stable and easy processes of reproduction. Polyploidy in plants is a result of parthenogenesis.