Directions: In the following questions, a statement of assertion (A) ...
Asexual reproduction involves a single individual, which give rise to new individual that are genetically identical to parents. It is because, when organisms reproduce asexually, only mitotic divisions are involved and the chromosome number remains the same.
View all questions of this test
Directions: In the following questions, a statement of assertion (A) ...
Assertion: Characteristics of parental plants can be preserved through asexual reproduction.
Reason: Vegetative reproduction involves only mitosis.
The correct answer for this question is option 'A', which states that both the assertion and reason are true and the reason is the correct explanation of the assertion.
Explanation:
Characteristics of parental plants can be preserved through asexual reproduction:
- Asexual reproduction is a type of reproduction that does not involve the fusion of gametes. It is the process by which offspring are produced from a single parent without the involvement of sex cells or fertilization.
- In asexual reproduction, the offspring are genetically identical to the parent, and therefore, the characteristics of the parental plants can be preserved.
- This is because asexual reproduction involves the production of new individuals through the mitotic division of cells, where the genetic information is replicated and passed on to the daughter cells without any genetic variation.
Vegetative reproduction involves only mitosis:
- Vegetative reproduction is a type of asexual reproduction that occurs in plants. It involves the production of new plants from vegetative parts of the parent plant, such as stems, roots, or leaves.
- In vegetative reproduction, the parent plant produces specialized structures called vegetative propagules, which can grow into new plants.
- The formation of these propagules involves the process of mitosis, where the parent cell divides into two identical daughter cells, each containing the same genetic information as the parent cell.
- Since mitosis does not involve the exchange of genetic material between two individuals, the offspring produced through vegetative reproduction are genetically identical to the parent plant.
Explanation of the reason:
- The reason given in the statement is that vegetative reproduction involves only mitosis.
- Mitosis is a type of cell division that occurs in all somatic cells of an organism, including the cells involved in asexual reproduction.
- During mitosis, the genetic material of a cell is replicated and divided equally between the two daughter cells, resulting in the formation of genetically identical cells.
- Therefore, since vegetative reproduction involves only mitosis, it leads to the production of offspring that are genetically identical to the parent plant.
Conclusion:
- The assertion that characteristics of parental plants can be preserved through asexual reproduction is true.
- The reason given for this assertion, which is that vegetative reproduction involves only mitosis, is also true and provides a correct explanation for the assertion.
- Hence, option 'A' is the correct answer for this question.
To make sure you are not studying endlessly, EduRev has designed Class 10 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 10.