Kree DNA has histone like proteins that wrap up in nucleosomes. The Kree have a core DNA length of 255 bp and a linker DNA of 45 bp. The Kree genome is made up of approximately 6x108 base pairs of DNA. Determine the number of nucleosomes in each nucleus.
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- Kree DNA has histone like proteins that wrap up in nucleosomes. The Kree have a core DNA length of 255 bp and a linker DNA of 45 bp. The Kree genome is made up of approximately 6x108 base pairs of DNA. Determine the number of nucleosomes in each nucleus.
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- If the DNA of chromosome 1 is fully extended, it will exceed the diameter of the nucleus of a cell by about 15,000 times. Therefore, discuss how DNA is packaged into the cell.A diploid human cell contains approximately 6.4 billion base pairs of DNA. Assuming that the linker DNA encompasses 35 bp, how many nucleosomes are present in such a cell? Use two significant figures. How many histone proteins are complexed with this DNA? use two significant figures.non-coding DNAs can be put into two groups, name them
- options for all 3 are euchromatin and heterochromatinThe human genome has approximately 30,000 genes, but human cells can produce over 100,000 different polypeptides. Explain how this is possibleTRUE OR FALSE a) The 2 chains composing one double helix run in opposite directions; they are antiparallel (one is 5’->3’ and the other 3’->5’). b) DNA molecules can perform their function in replication and transcription as long as the hydrogen bonds between the bases remain intact.
- The DNA molecules in eukaryotes including humans are negatively supercoiled while that in prokaryotes and viruses is positively supercoiled. (true/false, explain)Eukaryotic DNA is typically organized into two major regions called euchromatin and heterochromatin. Which of the following applies to euchromatin? They are regions of little or no transcription activity. They are regions of highly condensed chromatin. They are regions that are uncoiled and active in transcription. They may refer to regions near the ends of chromosome (telomeres). They refer to regions that contain the centromere.True or False 1. Histone proteins are able to associate with DNA segments because of the anionic nature of the amino acids arg and lys. 2. DNA molecules can perform their function in replication and transcription as long as the hydrogen bonds between the bases remain intact. 3. A double helix makes one complete turn every 10 residues (3.4nm). Therefore the distance between base pairs is 0.34nm.
- For a linear B-DNA molecule of 50,000 kb, calculate (a) the contour length and (b) the length of the DNA as packaged in nucleosomes with linker histones present.Give only typing answer with explanation and conclusion Your analysis has identified that this new organism has same chromosomal structure as that of eukaryotes on earth. However, the average length of linker DNA of the new organism is 100 bp. If the haploid genome of the new organism has a size 6 billion bp, how many nucleosomes will be in this new organism?Why evenly spaced sequence in chromatogram is an indication of a good DNA chromatogram?