Question

Which of the following characteristics of chloroplasts make them seem more similar to bacterial cells than to eukaryotic cells?

Group of answer choices (CAN BE MORE THAN 1):

Translation is sensitive to chloramphenicol

Alternate codons are found in the chloroplast genome

Introns are present in genes

DNA is not arranged in nucleosomes

Answer 1

Correct options are

• Translation is sensitive to chloramphenicol
• DNA is not arranged in nucleosomes

These are characteristics of chloroplasts that make them seem more similar to bacterial cells than to eukaryotic cells. Chloroplasts contain 70s ribosomes and circular DNA as in prokaryotes. Chloroplast translations can be inhibited by chloramphenicol because, 70S ribosomes are sensitive to it. Cellular translations are inhibited by cycloheximide, as 80S ribosomes are sensitive to it. Chloroplast DNAs are not associated with histones. Genes in chloroplast DNA are organized into operons as in prokaryotes. Introns are seen in chloroplast DNA molecules as in eukaryotes.