Outline the function of telomeres in eukaryotic chromosomes.
TERRA is transcribed from the DNA nucleotide sequence shown in Fig. 5.1. Fill in Fig. 5.2 so that it shows the six bases in the RNA sequence of TERRA.
Use Fig. 5.3 to state the two amino acids in the dipeptide translated from TERRA RNA.
Scientists have discovered that TERRA interacts with genes in stem cells. Increased concentrations of TERRA in stem cells result in a large increase in the number of genes that are transcribed. Suggest the result of the large increase in the number of genes that are transcribed in stem cells.
Fig. 5.3 shows DNA triplet codes on the non-transcribed strand of a gene, together with the amino acids specified by those triplets. The bases at the centre of the diagram indicate the first base in a triplet. Use Fig. 5.3 to state the two amino acids in the dipeptide translated from TERRA RNA.
Scientists have discovered that TERRA interacts with genes in stem cells. Increased concentrations of TERRA in stem cells result in a large increase in the number of genes that are transcribed. Suggest the result of the large increase in the number of genes that are transcribed in stem cells.