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