A) polytene
B) B-chromosomes
C) Lampbrush
D) supernumerary chromosomes
Correct Answer: A
Solution :
Polytene chromosomes or giant chromosomes were discovered by Balbiani. They are also present in antipodal cells, suspensor cells and endosperm cells of plants. They are formed by somatic pairing of homologous chromosomes followed by repeated replication or endomitosis.
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