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5 Written Questions

5 Matching Questions

  1. Repressible enzymes
  2. Gene Expression
  3. RNA polymerase
  4. genomic
  5. Melting or denaturing
  1. a 1) Involves two separate but interrelated process, transcription and translation 2) RNA polymerase binds to a region of the DNA called the promoter 2.1) Only one strand of DNA acts as a template 2.1.1) This is called the sense strand 2.1.2) The strand not transcribed is the nonsense strand 3) Nucleotides in RNA are the same as those in DNA with one exception 3.1) Thymine is replaced with uracil 3.1.1) Binding in RNA is A:U or U:A and C:G or G:C 4) RNA polymerase continues down strand of DNA until it reaches a site on DNA called the terminator -> At the terminator RNA polymerase and the new strand of mRNA are released from strand of DNA 5)
  2. b Study of sequence of DNA
  3. c Is when you separate the 2 strands of a DNA
  4. d 1) Routinely synthesized 2) Generally involved in biosynthesis
  5. e Enzyme that synthesizes RNA using single stranded DNA as a template; synthesis always occur in the 5' to 3' direction.

5 Multiple Choice Questions

  1. Are 1) Adenine (A) - purine, 2) Thymine (T) - pyrimidine 3) Guanine (G) - purine 4) Cytosine (C) - pyrimidine
  2. Sequence of 3 nucleotides in a tRNA molecule that is complementary to a particular codon in mRNA. The anticodon allows the tRNA to recognize and bind to the appropriate codon.
  3. 1) DNA replication 2) DNA expression (gene expression)
  4. Ribosomal RNA -> type of RNA molecule present in ribosomes. rRNA builds the ribosomes
  5. RNA is deciphered to synthesize protein 1) Two more RNA molecules become involved in translation 1.1) Ribosomal RNA (rRNA) 1.2) Transfer RNA (tRNA) 2) The language of mRNA is in the form of codons 3) There are 64 codons that make up the "alphabet" of proteins 4) Codons contained in mRNA are read into proteins through translation 4.1) The site of translation is the ribosome 4.2) In response to each codon, tRNA brings the appropriate amino acid to the site of translation 4.3) Each codon has an anticodon -> The anticodon is complementary sequence to the codon

5 True/False Questions

  1. genomeStudy of sequence of DNA

          

  2. ActivatorsSequence of 3 nucleotides in a tRNA molecule that is complementary to a particular codon in mRNA. The anticodon allows the tRNA to recognize and bind to the appropriate codon.

          

  3. DNA (double stranded molecule characteristic)1) Strands are complementary to each other -> Due to the specific base pairing of bases -> A:T and C:G 2) Strands are held together with hydrogen bonds -> A is bound to T by two hydrogen bonds and G is bound to C by three hydrogen bond

          

  4. 5' refers to5'PO4. 1 strand of the DNA has a phosphate attached at the number 5 carbon of the sugar. -> Termed the five prime (5') end

          

  5. Start codonCodon that terminates translation, signaling the end of the protein; there are 3 stop codons

          

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