Multiple Choice
Which of the following molecules carry genetic information in most living organisms?
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7. DNA and Chromosome Structure
DNA as the Genetic Material
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Which of the following statements regarding prokaryotic DNA is true?
A
Prokaryotic DNA is always double-stranded RNA.
B
Prokaryotic DNA is typically circular and not enclosed within a nucleus.
C
Prokaryotic DNA is linear and found inside a membrane-bound nucleus.
D
Prokaryotic DNA contains introns that are spliced out during transcription.
Verified step by step guidance1
Step 1: Understand the nature of prokaryotic DNA. Prokaryotes, such as bacteria, have genetic material that is typically organized differently from eukaryotes.
Step 2: Recall that prokaryotic DNA is usually double-stranded DNA, not RNA. RNA is a different nucleic acid involved in transcription and translation processes.
Step 3: Recognize that prokaryotic DNA is generally circular in shape and is not enclosed within a membrane-bound nucleus, unlike eukaryotic cells.
Step 4: Note that prokaryotic DNA is not linear and does not reside inside a nucleus; instead, it is found in a region called the nucleoid, which lacks a membrane.
Step 5: Understand that prokaryotic genes typically lack introns, so splicing of introns during transcription is a feature of eukaryotic gene expression, not prokaryotic.
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