Question

question 6
a prokaryotic cell has ____ but does not have ____.
membrane - bound organelles; ribosomes
a nucleus; dna
dna; membrane - bound organelles
a nucleus; membrane - bound organelles

Explanation:

Prokaryotic cells contain genetic material (DNA, typically in a nucleoid region) and ribosomes for protein synthesis, but they lack a membrane-bound nucleus and other membrane-bound organelles like mitochondria or endoplasmic reticulum. Evaluating each option:

1. The first option is wrong because prokaryotes have ribosomes, not membrane-bound organelles.
2. The second option is wrong because prokaryotes have DNA, just no nucleus.
3. The third option is incorrect because while prokaryotes have DNA, the phrasing misrepresents the key distinction (they also lack a nucleus, which is a type of membrane-bound structure; the most accurate pair matches their presence of DNA and absence of all membrane-bound organelles).
4. The fourth option is incorrect because prokaryotes do not have a nucleus, so stating they "have a nucleus" is false.

The correct pair is that prokaryotes have DNA but no membrane-bound organelles.

Answer:

C. DNA; membrane-bound organelles