89) During fasting, glucose is synthesized from gluconeogenesis.Where is glucose used?
During fasting glucose is directed to the brain.
..
90) Why does DNA polymerase need a RNA primer for replication ofchromosomes?
DNA polymerase cannot start synthesis, only extends on anexisting polynucleotide. RNA polymerase can synthesize without anexisting primer.
..
91) During replication of chromosomes, synthesis of one strandis continuously extending. Another strand extend discontinuously.Why?
..
92) Histone proteins are core of nucleosomes. DNA wraps aroundthem. Both DNA and histones are involved in regulation of geneexpression. Transcription factors and enhancers are other elementsof regulation. What would be like if a gene has a promoter but doesnot have tissue specific regulatory protein binding sites?
..
93) Some of cancer causing genes are involved in DNA repair suchBRCA1 and BRCA2. Why do defects in DNA repair increase chance ofgetting cancer?
89) During fasting, glucose is synthesized from gluconeogenesis.Where is glucose used?
During fasting glucose is directed to the brain.
..
90) Why does DNA polymerase need a RNA primer for replication ofchromosomes?
DNA polymerase cannot start synthesis, only extends on anexisting polynucleotide. RNA polymerase can synthesize without anexisting primer.
..
91) During replication of chromosomes, synthesis of one strandis continuously extending. Another strand extend discontinuously.Why?
..
92) Histone proteins are core of nucleosomes. DNA wraps aroundthem. Both DNA and histones are involved in regulation of geneexpression. Transcription factors and enhancers are other elementsof regulation. What would be like if a gene has a promoter but doesnot have tissue specific regulatory protein binding sites?
..
93) Some of cancer causing genes are involved in DNA repair suchBRCA1 and BRCA2. Why do defects in DNA repair increase chance ofgetting cancer?
