Question

Assertion - Asexual reproduction is also called as blastogenesis.
Reason - In asexual reproduction , there is no formation and fusion of gametes.
A. Both assertion and reason are correct and reason is the correct explanation of assertion.
B. Both assertion and reason are correct , but reason is not the correct explanation of assertion.
C. Assertion is correct but reason is incorrect
D. Assertion is incorrect but reason is correct.

Answer 1

Hint:- Living organisms exhibit two major types of reproduction namely - Sexual and Asexualreproduction to continue their species by producing either identical organisms or variable organisms.Asexual reproduction is considered a primitive type as it is commonly seen in lower organisms whereasSexual reproduction is a modern type of reproduction commonly seen in higher organisms.

Complete step-by-step solution:- The organisms that reproduce by Asexually do not produce gametes thus do not involve the fusion of gametes. As a result, the exchange of genetic information will not occur and the resulting organism will be identical to their parents (clones).
-In contrast, organisms that reproduce by Sexually have characteristic sex organs that producegametes and thus involves the fusion of gametes. As a result, the exchange of genetic information will occur and thus organisms produced will be different from their parents.
-the organism that reproduces by budding undergoes the process called blastogenesis. Thusbudding is also called blastogenesis.
-The produced bud during blastogenesis on the parent body is either dispersed or remains on the parent body. It is called blastema.
-Thus asexual reproduction can also be termed as blastogenesis but only the budding isconcerned with the blastogenesis and fusion and formation of gametes do not occur inblastogenesis.
-Thus assertion and reason both are correct but the reason does not explain the assertion
-So, the correct answer is option B.

Note:-
Blastogenesis (budding) occurs in lower organisms. In this type of Asexual reproduction mitotic
division occurs due to which new organisms are produced very rapidly and without any variations called
Clones. Also, this process does not require separate mating partners thus it is rapidly performed by the
organisms to ensure the higher chances of survival of their species.