Question

1. what shape are the plasmid present in bacteria?

options: circular, linear, nuclear, luminous

Explanation:

Plasmids in bacteria are small, extrachromosomal DNA molecules. By definition and biological knowledge, bacterial plasmids are typically circular in shape. Linear plasmids are more common in some other organisms (like certain fungi), "nuclear" refers to a cellular organelle/region (not a DNA shape), and "luminous" relates to light emission (not DNA structure). So the correct option is the one with "circular".

Answer:

A. circular