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Genes quick check

A quick check of 3 questions. After you submit, each question shows the right answer and why.

3 of 10 questions, Advanced level. Aimed at the Advanced level, your current depth. Questions you have not answered yet come first.

Show all 10 questions

ScientistQuestion 1 of 3

A protein is 120 amino acids long. Not counting the stop codon, how many mRNA nucleotides are needed to code for it?

AdvancedQuestion 2 of 3

Almost every cell in your body carries the same genes, yet nerve cells and muscle cells are very different. Which explanation fits the evidence best?

AdvancedQuestion 3 of 3

A variant appears in one skin cell after ultraviolet damage. Explain why it cannot be passed on to that person's children.