Revise online questions wrong

• Not all segments of DNA consist of both parent's genetic information. Elaborate on this statement using your knowledge of DNA

  Mitochondrial DNA is not made up of both parent's genetic information (1 mark)Mitochondrial DNA is made solely from the offspring's mother (1 mark)
• Within the DNA molecule, what specifically determines which proteins are constructed and highlight the restrictions that are present?

  A nucleotide consists of a phosphate group and sugar molecule with a nitrogen base attached (1 mark)Three of these bases code for a particular amino acid (known as a base triplet) (1 mark)The four nitrogen bases in the DNA molecule will only pair a certain way (1 mark)Adenine will only pair with thymine and cytosine will only pair with guanine (1 mark)
• What is translation?


  Translation is the process where mRNA, coded from DNA, is decoded by a ribosome to produce a specific amino acid chain (1 mark)
• What is a coding strand?

  the strand of DNA that is not copied during transcription (1 mark)
• What is a template strand?

  the strand of DNA that is copied during transcription (1 mark)
• What is a triplet?

  a sequence of three bases in DNA that specifies a particular amino acid (1 mark)
• the following events that occur during DNA replication in the correct order:

  DNA molecule uncoils at one end

  Bonds between opposite bases break

  Opposite strands of DNA separate

  Bonds between opposite bases form

  Sugar-phosphate bonds form

  Daughter DNA molecules coil into double helices