Genetic Code Basics
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Questions and Answers

What is the primary function of spliceosomes in the context of genetic code?

  • To remove exons from mRNA
  • To synthesize proteins directly
  • To code for amino acids
  • To remove introns and join exons together (correct)
  • How many combinations of nucleotides can be formed using a triplet code with 4 different nucleotides?

  • 64 (correct)
  • 16
  • 80
  • 32
  • What is the significance of having introns in DNA genes?

  • They allow for more than one type of protein to be made (correct)
  • They limit the variety of proteins produced
  • They are coding regions for proteins
  • They are unnecessary and commonly deleted
  • What is the minimum number of nucleotides required to specify all 20 amino acids in the genetic code?

    <p>3</p> Signup and view all the answers

    Which statement best describes the genetic code?

    <p>It is a set of rules used to translate nucleotide sequences into protein structures</p> Signup and view all the answers

    Study Notes

    Genetic Code

    • DNA contains coding (exons) and non-coding (introns) regions
    • Introns are removed by spliceosomes, joining exons
    • mRNA is formed from exons
    • mRNA leaves the nucleus and is translated into protein
    • The genetic code converts mRNA nucleotide sequences to amino acid sequences
    • The code uses 4 nucleotides (A, C, G, T) to code for 20 amino acids
    • The code is read in triplets (3 nucleotides)
    • Each triplet codes for a specific amino acid
    • There are 64 possible triplet combinations, enough to code for all 20 amino acids

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    Description

    Explore the fundamental aspects of the genetic code, including the roles of exons and introns, the process of mRNA formation, and how nucleotide sequences are translated into amino acids. Understand the significance of triplet codons in protein coding and the versatility of the genetic code.

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