Differences Between prokaryotes & Eukaryotes Flashcards Preview

MGM (D) > Differences Between prokaryotes & Eukaryotes > Flashcards

Flashcards in Differences Between prokaryotes & Eukaryotes Deck (10)
0

Do they have a nucleus?

Prokaryotes - no nucleus
Eukaryotes - yes nucleus

1

Are transcription and translation coupled?

Prokaryotes - coupled
Eukaryotes - separate

2

Is mRNA polycistronic or monocistronic?

Prokaryotes - polycistronic
Eukaryotes - monocistronic (5' cap + poly A tail)

3

What are sizes of ribosomal subunits?

Prokaryotes - small 30S, large 50S, total 70S
Eukaryotes - small 40S, large 60S, total 80S

4

What is the translation initiator?

Prokaryotes - f-Met tRNA
Eukaryotes - Met-tRNA

5

Where does initiation of translation occur?

Prokaryotes - shine-dalgarno sequence (AGGAGG; there are multiple)
Eukaryotes - 5' cap dependent scanning (only one) & internal ribosomal entry system (IRES; only one)

6

How many initiation factors for transcription are there?

Prokaryotes - 3
Eukaryotes - >12

7

Sensitive or resistant to antibiotics?

Prokaryotes - sensitive
Eukaryotes - resistant

8

Sensitive or resistant to toxins?

Prokaryotes - resistant
Eukaryotes - sensitive

9

What are the rRNA ribosomal component lengths?

Prokaryotes - 16S & 23S
Eukaryotes - 18S & 28S