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AP Biology 6.4 A Explain How the Phenotype of an Organism Is Determined By Its Genotype Questions

Practise AP Biology 6.4.A questions by connecting mRNA codons, tRNA, ribosomes and translation with protein structure and phenotype.

Syllabus
Effective Fall 2025
Course
AP Biology

Exam points

  • explain how codons, tRNA and ribosomes determine an amino-acid sequence
  • calculate amino-acid number from mRNA length and identify start or stop roles
  • distinguish prokaryotic cotranscriptional translation from eukaryotic processing

AP Biology 6.4 A Explain How the Phenotype of an Organism Is Determined By Its Genotype Questions question 1

[Maximum number: 1]

Most proteins that are secreted from a cell must be transported to the endoplasmic reticulum (ER) either during translation or after translation.

C.

Protein 1 is encoded by 234 nucleotides, while protein 2 is encoded by 495 nucleotides. Assuming all nucleotides for both proteins encode amino acids, calculate the difference in the number of amino acids between the two proteins.

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