Question

which of the following are characteristics of eukaryotic dna replication? select all that apply.
a) replicates in cytoplasm
b) one replication origin
c) dna linear in nature
d) occurs in two directions
e) replication origins look like bubbles
f) unwinds in multiple areas
g) dna circular in nature
h) unwinds in one area
i) replicates in nucleus

Explanation:

• A: Eukaryotic DNA replicates in the nucleus, not cytoplasm (prokaryotes replicate in cytoplasm). Eliminate A.
• B: Eukaryotes have multiple replication origins, prokaryotes have one. Eliminate B.
• C: Eukaryotic DNA is linear (prokaryotic is circular). So C is correct.
• D: DNA replication (both eukaryotic and prokaryotic) is bidirectional. So D is correct.
• E: Eukaryotic replication origins form replication bubbles (multiple origins create multiple bubbles). So E is correct.
• F: Eukaryotes have multiple origins, so DNA unwinds in multiple areas. F is correct.
• G: Eukaryotic DNA is linear, not circular. Eliminate G.
• H: Eukaryotes unwind in multiple areas (due to multiple origins), not one. Eliminate H.
• I: Eukaryotic DNA is in the nucleus, so replication occurs in the nucleus. I is correct.

Answer:

C) DNA linear in nature, D) Occurs in two directions, E) Replication origins look like bubbles, F) Unwinds in multiple areas, I) Replicates in nucleus