Question

The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because
A. Offspring do not possess exact copies of parental DNA
B. DNA of only one parent is copied and passed on to the offspring
C. Offspring are formed at different times
D. DNA of parent and offspring are completely different

Answer 1

During sexual reproduction, fertilization creates a single-celled zygote which includes genetic material from both gametes. Genetic recombination is the process where genetic material (DNA) joins up so that homologous chromosome sequences are aligned with each other. This process is followed by an exchange of genetic information.

Complete step by step answer:
Let’s discuss the options and find out the correct answer.
- Offspring do not possess exact copies of parental DNA: Cloning is the process of producing genetically identical individuals of an organism either naturally or artificially. In nature, clones through asexual reproduction have been produced by organisms. Hence, this option is correct.
- DNA of only one parent is copied and passed on to the offspring: With sexual reproduction, offspring are genetically unique because they get a mix of genes from the parent generation. The male and female reproductive cells are called gametes in sexual reproduction, or simply the sperm and egg. Hence, this option is incorrect.
- Offspring are formed at different times: With sexual reproduction, offspring are genetically unique because they get a mix of genes from mom and dad. Hence, this option is incorrect.
- DNA of parents and offspring are completely different: With sexual reproduction, offspring are genetically unique because they get a mix of genes from the parent generation. Hence, this option is incorrect.
Thus, option A: Offspring does not possess exact copies of parental DNA is the correct answer.

Note: The offsprings that are produced as a result of asexual reproduction are not only identical to one another but are also exact copies of their parent. So, such individuals are called clones. The offspring, thus formed, do not possess exact copies of parental DNA.