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5 Written questions

5 Matching questions

  1. -script
  2. E site
  3. deletion
  4. spliceosome
  5. primary transcript
  1. a 1) A deficiency in a chromosome resulting from the loss of a fragment through breakage. (2) A mutational loss of one or more nucleotide pairs from a gene.
  2. b An initial RNA transcript; also called pre-mRNA when transcribed from a protein-coding gene
  3. c write ex: transcription
  4. d One of a ribosome's three binding sites for tRNA during translation. The place where discharged tRNAs leave the ribosome.
  5. e A complex assembly that interacts with the ends of an RNA intron in splicing RNA, releasing the intron and joining the two adjacent exons.

5 Multiple choice questions

  1. An enzymatic RNA molecule that catalyzes reactions during RNA splicing.
  2. Modification of RNA before it leaves the nucleus, a process unique to eukaryotes.
  3. In prokaryotes, a special sequence of nucleotides in DNA that marks the end of a gene. It signals RNA polymerase to release the newly made RNA molecule, which then departs from the gene.
  4. The synthesis of RNA on a DNA template.
  5. One of a ribosome's three binding sites for tRNA during translation. Holds the tRNA carrying the next amino acid to be added to the polypeptide chain.

5 True/False questions

  1. anti-within ex: intron


  2. missense mutationThe most common type of mutation, a base-pair substitution in which the new codon makes sense in that it still codes for an amino acid.


  3. transfer RNA (tRNA)An RNA molecule that functions as an interpreter between nucleic acid and protein language by picking up specific amino acids and recognizing the appropriate codons in the mRNA.


  4. trans-across ex:transcription


  5. mutagenA rare change in the DNA of a gene, ultimately creating genetic diversity.


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