central dogma

The "central dogma" states that genetic information flows from 

• Protein-->mRNA-->DNA
• Protein-->DNA-->mRNA
• mRNA-->DNA-->Protein
• DNA-->mRNA-->Protein

What is the result of transcription?

• The synthesis of RNA from protein

• The synthesis of protein from RNA

• The synthesis of protein from DNA

• The synthesis of RNA from DNA

What is the result of translation?

• The synthesis of RNA from protein

• The synthesis of protein from RNA

• The synthesis of protein from DNA

• The synthesis of RNA from DNA

What is the name for when DNA makes another copy of itself?

• transcription
• translation
• replication
• duplication

What are the structures in this image called?

• chromosomes

• centromere

• sister chromatids

• chromatin

What enzyme is used to 'unzip' the DNA strand during replication?

• Helicase

• Polymerase

• Ligase

• Amylase

Answer explanation

Think 'double helix' structure so must be helicase.

Why does DNA replicate?

• To create another copy for the new cell
• To create a duplicate copy in case the original gets damaged
• To create a new copy to replace the damaged original

Site where replication begins

• Polymerase action site

• Replication fork

• Replication Origin

• In the front

Which is the first step?

• DNA Helicase unwinds original DNA strand

• RNA Primase lays down RNA primer for new nucleotide bases.

• DNA polymerase builds new strands by bring in new nucleotide bases.

• Ligase knits together fragments on lagging strand

Which is the second step?

• DNA Helicase unwinds original DNA strand

• RNA Primase lays down RNA primer for new nucleotide bases.

• DNA polymerase builds new strands by bring in new nucleotide bases.

• Ligase knits together fragments on lagging strand