1a. Q: Choose the correct statements concerning the properties of the human genome! A: Human genome is made of roughly 100 thousand genes K: F A: The size of the haploid genome is approximately 6 billion base pairs. K: F A: All human cells have the same DNA content without exceptions. K: F A: Mitochondria contain a variant of DNA that has Uracil in place of Thymine K: F A: Diploid genome is approximately 6 billion base pairs long K: T A: Mitochondrial DNA is present in several copies per cell. K: T A: Nuclear DNA is organized in chromosomes. K: T A: The chemical composition of DNA is universal in the whole biosphere. K: T 2. Q: Choose the correct statements regarding the methods used to investigate the human genome! A: The genome was sequenced in 1953 by Watson and Crick in the UK. K: F A: The sequence of the human genome can be investigated on nucleotide level by X-ray diffraction methods. K: F A: Sequencing the Human Genome is performed nowadays by using bacterial microreactors. K: F A: Sequencing of the Human genome was performed at Genopole near Paris. K: F A: The human genome was sequenced in a collaborative work in an international effort. K: T A: The draft of the human genome map was drawn by combining public and private data sets. K: T A: The method that is used for the novo sequencing is the shotgun sequencing. K: T A: The price of sequencing is decreasing rapidly by miniaturization and by eliminating bacterial work and replacing it with pure enzymatic methods. K: T 3. Q: Choose the correct statements regarding the regulation of transcription! A: Euchromatin and heterochromatin is an electro microscopic artefact. K: F A: Transcription is regulated only by protein phosphorylation. K: F A: Histone methylation is a repressive mark K: F A: DNA is transcribed by DNA polymerase. K: F A: DNA is transcribed by RNA polymerases. K: T A: Histone acetylation is an activator mark. K: T A: DNA methylation is usually a repressive mark K: T A: Heterochromatin is a condensed chromatin region with no transcription and specific histone markers. K: T 4. Q: Choose the correct statements regarding nuclear receptors! A: Nuclear receptors are sensors of radioactive isotopes. K: F A: Nuclear receptors are sitting in the membrane and act through G proteins. K: F A: Nuclear receptors are direct regulators of splicing. K: F A: Nuclear receptors can be easily detected from plasma. K: F A: Nuclear receptors have always a DNA binding domain. K: T A: Nuclear receptors have a ligand binding domain that is able to recognize various lipids. K: T A: Nuclear receptors are translating the lipid environment into specific genetic programs. K: T A: The site of action of the ligand activated nuclear receptors is in the nucleus. K: T