A giant chromosome with a number of chromonemeta is ________ ?
Correct answer: D. Polytene chromosome
- A. Lampbrush chromosome
- B. Hetero chromosome
- C. Supernumerary chromosome
- D. Polytene chromosome
Explanation
A polytene chromosome is a giant chromosome formed by repeated DNA replication without cell division, producing many aligned chromonemata or chromatids. Students may choose a lampbrush chromosome because it is also unusually large, but lampbrush chromosomes have extended loops and are not characterized by numerous parallel chromonemata in the same way.
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