Science test done

mRNA is read is 3 letter sequences called

codons

What type of mutation has occurred? If AGCUCG changes to AGCAUCG

Frameshift (Insertion)

When this specific type of substitution mutation occurs it does not end up changing the amino acid sequence produced

Silent mutation

Why is DNA replication considered semi conservative

each new DNA molecule has one strand from the original molecule, and one new strand

If the parent DNA strand is 5' ATCGATACTAC 3', what will the daughter strand be after DNA replication?

(include the direction the strand is running in, think about if it starts with 5’ or 3’)

3’ TAGCTATGATG 5’

Starting with a parent strand of DNA, what two processes need to occur first before translation can occur

Dna replication and transcription

Uracil (U) is present in what type of molecule

RNA

Translate the following: AUG GAC CUA

Met asp leu

A reading frame shift can be caused by what types of mutations

Insertion or deletion

This substitution results in what type of mutation

Missense

How could you mutate this sequence of RNA to result in a nonsense mutation: AUG CAA UAG

Change C to U

What process is occurring

Transcription

This strand of DNA goes through Transcription: ATG GCA CCC

What will be the resulting strand of mRNA produced

UAC CGU GGG

Translation results in the formation of

Amino acids or proteins

This is a molecule of

RNA

What will be the resulting mRNA from this DNA sequence: GAT-TAC-AGA

CUA AUG UCU

Transcribe the following: CGA GGC AAC

GCU CCG UUG

Translate the following: GCA CCG AAG

Ala pro lys

What type of mutation will have the most minimal impact on an organism and the proteins produced

silent

Why is a substitution not considered a reading frame shift mutation

It does not impact the rest of the codons that are read after the mutation

This is the original strand of RNA: AUG AAA UGA

Create a mutated strand that results in a missense mutation