Question

40. Polytene chromosomes are
(a) unistranded
(b) bistranded
(c) multistranded
(d) None of these​

Answer 1

Explanation:

Polytene chromosomes are large chromosomes which have thousands of DNA strands. They provide a high level of function in certain tissues such as salivary glands. ... They are produced when repeated rounds of DNA replication without cell division forms a giant chromosome.