ASSERTION: Variations are seen in offspring produced by asexual reproduction.
REASON: DNA molecule produced by DNA copying is not exactly identical to the original DNA
please give correct ans... this is the third tym I'm asking this qn
Answers
The DNA copying mechanism, also called the DNA replication processes, are highly precise, but they are not completely accurate. Each time when the DNA is copied, some changes or mistakes might take place in formation of the new DNA strand. These mistakes account for the variations that occur amongst the individuals in a population. In sexual reproduction, these changes increase in rate of occurrence due to involvement of two individuals with different patterns of accumulation of variations. The variations hence created, are unique in nature. Thus, the DNA copies generated are similar, but not identical to the original.
Answer: Both assertion and reason are correct, and reason is the correct explanation for the assertion.
Explanation: Asexual reproduction is a mode of reproduction in which only single parent participates. In this method of reproduction, the offspring produced is called a clone because it is similar to its parent. Unlike sexual reproduction gamete formation does not occur in this method and no cross-over of genes take place. So, the offspring is more similar and less variant. The copying of DNA takes place and passed on to the offspring. When the DNA is copied, sometimes error may occur and thus the copied DNA is not exact same as the original one. So, due to the error of copying some variations occur in the offspring produced by asexual reproduction.
So, variations are seen in offspring produced by asexual reproduction because DNA molecule produced by DNA copying is not exactly identical to the original one.
To know more about asexual reproduction, click here:
https://brainly.in/textbook-solutions/b-lakhmir-singh-manjit-kaur-biology-10-9789352837878
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