Question

A repeated cycle of DNA replication without separation of daughter chromatids leads to the formation of
A) Pachytene chromosome
B) Leptotene chromosomes
C) Polytene chromosome
D) Zygotene chromosomes

Answer 1

Answer:

Polytene chromosomes

Explanation:

Polytene chromosomes are produced with repeated rounds of DNA replication without cell division. You'll find, for example, that the chromosomes of Drosphillia salivary glands, polytene chromosomes, consist of multiple identical DNA strands that are aligned in parallel structures, making huge chromosomes within one cell.

Answer 2

Answer:

Explanation:

Somatic pairing occurs in polytene chromosomes, which means homologous chromosomes remain side by side. Polytene chromosomes stretch the cell and increase its volume. Due to many copies of the genes, they also display a high degree of gene expression.

Polytene chromosomes are formed through successive rounds of DNA replication that do not involve cell division.

Therefore, Option (c) "Polytene chromosome" is the right answer.

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