If large number of loops project out from the chromatid axis as in oocytes of amphibians, such chromosomes are
A
Balbiani rings
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B
Lampbrush chromosomes
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C
Polytene chromosomes
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D
Chromosome puffs
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Solution
The correct option is B Lampbrush chromosomes Lampbrush chromosomes are a special form of chromosome found in the growing oocytes of most animals, except mammals. They were first described by Walther Flemming in 1882. Lampbrush chromosomes of tailed and tail less amphibians, birds and insects are described best of all. Later in 1892, J. Ruckert made detailed study in the oocytes of sharks.