A functional polypeptide chain produced during translation consists of exactly 145145145 amino acids. The coding region of the mature messenger RNA (mRNA) transcript that produced this polypeptide contains exactly one start codon at the beginning (which codes for the first amino acid in the chain) and exactly one stop codon at the end (which does not code for an amino acid).
Determine:
The total number of codons in the coding region of this mRNA transcript.
The minimum number of nucleotides required in this coding region to code for this polypeptide.
76 exam-style questions on AQA GCSE Biology 6.1 Reproduction, covering 6.1.1 Sexual and asexual reproduction, 6.1.2 Meiosis, 6.1.3 Advantages and disadvantages of sexual and asexual reproduction, 6.1.4 DNA and the genome, 6.1.5 DNA structure, 6.1.6 Genetic inheritance, 6.1.7 Inherited disorders, and 6.1.8 Sex determination. Each one has a worked solution and a mark scheme showing where the marks go.