DNA Lesson 4 Translation and protein synthesis

• Biologie
• Middelbare school
• vwo
• Leerjaar 4

DNA

Lesson 4 Translation & protein synthesis

Important !

Test in testweek will be about Cells and DNA

Learning goals p. 53-55

You can describe how the process of translation takes place

You can explain the different steps of protein synthesis

Key words p. 53-55

mRNA

codon

start codon and stop codons

tRNA 

anticodon

amino acids

codon chart

DNA

mRNA

single stranded

double stranded

deoxy ribose

ribose

Thymine

Uracil

Intron: intruding, exon: expressed (RNA processing = lesson material V5)

If the template on the DNA reads: AGGTCTGAA what will the mRNA be?

If the coding strand of DNA reads: CGGTAATG, what will the mRNA be?

The codon UGG codes for:

1. Stop
2. Tryptophan
3. Valine
4. Cysteine

The codon ACC codes for:

1. Histidine
2. Proline
3. Threonine
4. Glutamine

The codon that codes for start is:

1. AUG
2. UUC
3. UAG
4. CAG

Cracking the code:

MYCAT

Methionine – Tyrosine – Cysteine – Alanine – Threonine

tRNA: UAC – AUA – ACA – CAG – UGA

mRNA: AUG – UAU – UGU – GCU – ACU

DNA template strand: TAC – ATA – ACA – GCA – TGA

DNA coding strand: ATG – TAT – TGT – GCT - ACT

Learning goals p. 53-55

You can describe how the process of translation takes place

You can explain the different steps of protein synthesis

Lablesson DNA isolation

• Make pairs (You will be in this pair tomorrow)
• Work on the exercises (per duo)

Done? Give the filled in paper back to me  

(we will discuss tomorrow)

• Start working on the two worksheets about lesson 4

Homework

Worksheets lesson 4 (two worksheets)