X hits on this document

155 views

1 shares

0 downloads

0 comments

15 / 31

NCDPI

North Carolina Test of Biology. Form I RELEASED Fall 2009

28.

This chart shows a list of messenger RNA codons.

RELEASED

A

One amino acid will change.

B

Two amino acids will change.

C

All of the amino acids will change.

D

The amino acids will remain the same.

A strand of DNA with the sequence AAC AAG CCC undergoes a mutation, and the first A is changed to a C. How will this mutation affect the amino acid sequence?

First

Second

Third

Base

Base

Base

UUU

Phenylalanine

UCU

Serine

UAU

Tyrosine

UGU Cysteine

U

UUC

Phenylalanine

UCC

Serine

UAC

Tyrosine

UGC Cysteine

C

UUA

Leucine

UCA

Serine

UAA

Stop

UGA Stop

A

UUG

Leucine

UCG

Serine

UAG

Stop

UGG Tryptophan

G

CUU

Leucine

CCU

Proline

CAU

Histidine

CGU

Arginine

U

CUC

Leucine

CCC

Proline

CAC

Histidine

CGC

Arginine

C

CUA

Leucine

CCA

Proline

CAA

Glutamine

CGA

Arginine

A

CUG

Leucine

CCG

Proline

CAG

Glutamine

CGG

Arginine

G

Codons in mRNA

U

U

C

A

G

C

U C A G U C A G

Serine Serine Arginine Arginine Glycine Glycine Glycine Glycine

AUU

Isoleucine

AUC

Isoleucine

AUA

Isoleucine

AUG Methionine or start

GUU

Valine

GUC

Valine

GUA

Valine

GUG

Valine

AGU AGC AGA AGG GGU GGC GGA GGG

A

G

ACU Threonine AAU ACC Threonine AAC ACA Threonine AAA ACG Threonine AAG

Asparagine Asparagine Lysine Lysine

GAU Aspartic Acid GAC Aspartic Acid GAA Glutamic Acid GAG Glutamic Acid

GCU

Alanine

GCC

Alanine

GCA

Alanine

GCG

Alanine

Page 14

Go to next page

Document info
Document views155
Page views173
Page last viewedThu Jan 19 05:08:40 UTC 2017
Pages31
Paragraphs1242
Words4447

Comments