Question

Which of the following represent differences between growth of cell cultures containing cytoplasmic organelle disease versus genetic transmission of nuclear DNA from parent to offspring?
I. Meiosis maintains the genetic integrity of growing cell cultures, while mitosis arranges nuclear DNA into a form which is transmissible to offspring.

II. The process of arranging nuclear DNA in preparation for transmission to offspring is a cyclical process, while the growth of cell cultures is carried out by a noncyclical process.

III. Growth of cell cultures requires transformation of diploid cells into haploid cells, while genetic transmission of nuclear DNA to offspring requires transformation of haploid cells into diploid cells.

Answer 1

Answer:

None of these.

Explanation:

(I) It is incorrect because mitosis is responsible for maintaining genetic integrity, and cell culture growth between daughter, and parent cell in a cell culture.

(II) It is incorrect because creation of gametes from the meiosis is a non-cyclical process, it happens one time, and ends in gametes creation such as ova, and sperm cell. On the other hand mitosis is a cyclic process.

(III) It is also incorrect because mitosis is a process which obtains cells with diploid no. of chromosomes, and in meiosis genetic transmission of DNA to offspring, the no. of chromosomes is reduced (diploid to haploid, not increasing).