5 Written Questions
5 Matching Questions
- base-pair substitution
- RNA splicing
- a The synthesis of RNA on a DNA template.
- b A type of point mutation; the replacement of one nucleotide and its partner in the complementary DNA strand by another pair of nucleotides.
- c The removal of noncoding portions (introns) of the RNA molecule after initial synthesis.
- d A noncoding, intervening sequence within a eukaryotic gene.
- e A specific nucleotide sequence in DNA that binds RNA polymerase and indicates where to start transcribing RNA
5 Multiple Choice Questions
- 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.
- A specialized base triplet at one end of a tRNA molecule that recognizes a particular complementary codon on an mRNA molecule.
- 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.
- An enzyme that links together the growing chain of ribonucleotides during transcription.
- The synthesis of a polypeptide using the genetic information encoded in an mRNA molecule. There is a change of languagefrom nucleotides to amino acids
5 True/False Questions
deletion → 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.
one gene-one polypeptide hypothesis → A mutation that changes an amino acid codon to one of the three stop codons, resulting in a shorter and usually nonfunctional protein
ribosome → An enzymatic RNA molecule that catalyzes reactions during RNA splicing.
E site → One of a ribosome's three binding sites for tRNA during translation. The place where discharged tRNAs leave the ribosome.
poly- → many