Which corresponds to parthenogenesis ?
(a) Autogamy
(b) Endomixis
(c) Cytogamy
(d) Amphimixis

Options

A. Autogamy
B. Endomixis
C. Cytogamy
D. Amphimixis

Answer

To determine which option corresponds to parthenogenesis, we need to analyze each of the given terms:

1. **Understanding Parthenogenesis**:
- Parthenogenesis is a form of asexual reproduction where an embryo develops from an unfertilized egg. This means that the offspring are produced without the fusion of gametes, resulting in a clone of the parent.

2. **Analyzing Each Option**:
- **(a) Autogamy**: This refers to the production of gametes by the division of a single parent cell. Since parthenogenesis does not involve the production of gametes but rather the development of an embryo from an unfertilized egg, this option does not correspond to parthenogenesis.

- **(b) Endomixis**: This involves nuclear reorganization within a single cell. While it does not directly correspond to parthenogenesis, it is the closest option since it involves processes within one cell. However, it is not a direct match as parthenogenesis specifically refers to the development of an embryo from an unfertilized egg.

- **(c) Cytogamy**: This is the joining of two parent cells without nuclear exchange. Since parthenogenesis involves only one parent, this option is incorrect.

- **(d) Amphimixis**: This refers to the fusion of two gametes to form a zygote. Since parthenogenesis does not involve the fusion of gametes, this option is also incorrect.

3. **Conclusion**:
- After analyzing all options, we find that **(b) Endomixis** is the most relevant to parthenogenesis, as it involves processes within a single cell, even though it is not a perfect match. The other options either involve two parents or the production of gametes, which do not align with the definition of parthenogenesis.

Thus, the correct answer is **(b) Endomixis**.