Question 1
| mRNA codon (5' to 3') | Amino acid |
|---|---|
| AAA | Lys |
| AUG | Met |
| GAU | Asp |
| GCU | Ala |
| GGU | Gly |
| GUA | Val |
| UAG | stop |
| UCG | Ser |
| UGG | Trp |
| UUU | Phe |
A section of mRNA reads 5' AUG GCU UGG AAA UUU UAG 3'. Based on the table, which polypeptide is made from it?
WACE Biology multiple choice
Section One of the ATAR examination is 30 multiple-choice questions, with about 40 minutes suggested: 80 seconds a question. Read every option before you choose: the wrong ones are built from common slips.
| Section One | 30 questions, 30% of the examination, about 40 minutes |
|---|---|
| Options | Four, one best answer |
| Our checks | Two timed 30-question multiple-choice checks in 40 minutes |
What the questions test
- Ideas from all six topics, often in a short scenario.
- Short calculations: Punnett square ratios, pedigree probabilities and allele frequencies, with the options built from common slips.
- Reading data: a table, a graph, a pedigree, a DNA profile, a phylogenetic tree or a feedback loop.
Try 2 questions
Question 2
A rabbit population on a wheatbelt farm was sampled every five years. The graph shows the frequency of an allele linked to resistance to a virus that was first released in the area in year 5. Which statement is best supported by the graph?
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How many multiple-choice questions are in the exam?
Section One has 30 multiple-choice questions, worth 30% of the examination, with about 40 minutes suggested.