B2.1 Mark Scheme
... affects enzyme activity (linking this to number of bubbles/oxygen production) including reference to denaturation and/or shape change of enzyme/active site the answer communicates ideas clearly and coherently uses a range of scientific terminology accurately spelling, punctuation and grammar are use ...
... affects enzyme activity (linking this to number of bubbles/oxygen production) including reference to denaturation and/or shape change of enzyme/active site the answer communicates ideas clearly and coherently uses a range of scientific terminology accurately spelling, punctuation and grammar are use ...
DNA Shape Dominates Sequence Affinity in Nucleosome Formation
... strong electrostatic attraction to the positively charged histone surface. Protein-bound sites along DNA present barriers to transcription; thus, their positioning is a crucial element in the regulation of cellular function for all eukaryotic species [1–3]. In spite of being central to biology, the ...
... strong electrostatic attraction to the positively charged histone surface. Protein-bound sites along DNA present barriers to transcription; thus, their positioning is a crucial element in the regulation of cellular function for all eukaryotic species [1–3]. In spite of being central to biology, the ...
Perl Laboratory Study Guide – Section I
... In this section you will learn to write text to a file. First, copy ex5-4.pl to ex6-1.pl Add a line that takes an output filename from the command line. For example, the command line should be something like: perl ex6-1.pl infile.fasta outfile.txt At the end of the script, add a couple of lines that ...
... In this section you will learn to write text to a file. First, copy ex5-4.pl to ex6-1.pl Add a line that takes an output filename from the command line. For example, the command line should be something like: perl ex6-1.pl infile.fasta outfile.txt At the end of the script, add a couple of lines that ...
TGAC * Sequence Polymorphisms Module
... Basic Local Alignment Search Tool (BLAST) searches databases for matches to a query DNA or protein sequence. Gene or protein homologs share sequence similarities due to descent from a common ancestor. Biological evidence is needed to edit and confirm gene models predicted by computer algorithm ...
... Basic Local Alignment Search Tool (BLAST) searches databases for matches to a query DNA or protein sequence. Gene or protein homologs share sequence similarities due to descent from a common ancestor. Biological evidence is needed to edit and confirm gene models predicted by computer algorithm ...
PART I
... ssT–DNA strand reducing the complex diameter to approximately 2 nm. This is thought to make the translocation through membrane channels easier. VirE2 contains two plant nuclear location signals (NLS) and VirD2 one. This suggests that both proteins (and probably also VirF) presumably play important r ...
... ssT–DNA strand reducing the complex diameter to approximately 2 nm. This is thought to make the translocation through membrane channels easier. VirE2 contains two plant nuclear location signals (NLS) and VirD2 one. This suggests that both proteins (and probably also VirF) presumably play important r ...
A-level Biology Essay Titles Paper 3
... to non-functional enzymes Relationship between the cell cycle and cancer Proto-oncogenes and tumour suppressor genes Gene mutations ...
... to non-functional enzymes Relationship between the cell cycle and cancer Proto-oncogenes and tumour suppressor genes Gene mutations ...
University of Debrecen - DEA
... eukaryotic cells: DNA replication and transcription (RNA synthesis) occur in the nucleus while translation (protein synthesis) occurs in the cytoplasm. In contrast to eukaryotic cells, prokaryotic cells have a simpler internal structure without organelles. However, prokaryotes differ from eukaryotes ...
... eukaryotic cells: DNA replication and transcription (RNA synthesis) occur in the nucleus while translation (protein synthesis) occurs in the cytoplasm. In contrast to eukaryotic cells, prokaryotic cells have a simpler internal structure without organelles. However, prokaryotes differ from eukaryotes ...
The Relationship Between DNA Replication and the
... DNA, the fact that a segment of the genetic material in this region is non-isogenic with the remainder of the chromosome could reduce the efficiency of transformation for the metB gene. In this way it is possible to account for high values for the ratio of origin to terminus markers in DNA extracted ...
... DNA, the fact that a segment of the genetic material in this region is non-isogenic with the remainder of the chromosome could reduce the efficiency of transformation for the metB gene. In this way it is possible to account for high values for the ratio of origin to terminus markers in DNA extracted ...
JUNE EXAM QUESTIONS (LIVE) 03 JUNE 2015
... Start with a cell containing FOUR chromosomes and describe ALL the chromosomal changes that occur during meiosis, resulting in the formation of abnormal gametes due to non-disjunction in meiosis 1. ...
... Start with a cell containing FOUR chromosomes and describe ALL the chromosomal changes that occur during meiosis, resulting in the formation of abnormal gametes due to non-disjunction in meiosis 1. ...
Name: MEIOSIS MANIPULATIVES Introduction: You are going to
... Note: A chromosome is a tightly coiled strand of DNA and within each chromosome there are many, many genes. The chromosomes within each pair are homologous. Homologous chromosomes are the same in size and function but they do have different alleles. For instance, the homologous chromosome may contai ...
... Note: A chromosome is a tightly coiled strand of DNA and within each chromosome there are many, many genes. The chromosomes within each pair are homologous. Homologous chromosomes are the same in size and function but they do have different alleles. For instance, the homologous chromosome may contai ...
DNA Technology: What is it? Technology is the practical use of
... Technology is the practical use of Scientific knowledge; so DNA Technology is using what we know about the structure and functioning of DNA to improve life through forensics(solving crimes/mysteries), bioinformatics, pharmacology/nanotechnology (creating solutions for health and nutrition) Start by ...
... Technology is the practical use of Scientific knowledge; so DNA Technology is using what we know about the structure and functioning of DNA to improve life through forensics(solving crimes/mysteries), bioinformatics, pharmacology/nanotechnology (creating solutions for health and nutrition) Start by ...
3. Bacteria - la068.k12.sd.us
... bacteria. This allows for a drug-resistant bacteria to pass it on to other bacteria. ...
... bacteria. This allows for a drug-resistant bacteria to pass it on to other bacteria. ...
Supplementary methods
... 1.9 ± 0.2 times longer than WT and faster growth can be stimulated by restoring opaA on a plasmid (data not shown). Therefore OpaA performs functions which are essential, but can be bypassed by suppressor mutations. Yet OpaA is still required for optimal growth as would be expected for a coordinator ...
... 1.9 ± 0.2 times longer than WT and faster growth can be stimulated by restoring opaA on a plasmid (data not shown). Therefore OpaA performs functions which are essential, but can be bypassed by suppressor mutations. Yet OpaA is still required for optimal growth as would be expected for a coordinator ...
Nature Rev.Mol.Cell Biol
... The 4.6 kb Bam HI fragment is present when the b-globin gene is inactive and histones are deacetylated ...
... The 4.6 kb Bam HI fragment is present when the b-globin gene is inactive and histones are deacetylated ...
view PDF
... levels in the cell membranes of the enterococci (1 %; Bosley et al., 1990). Production of ethanol in the fermentation of glucose by TI-1T is another key feature separating TI-1T from the homofermentative Enterococci (Stiles & Holzapfel, 1997). Finally, TI-1T tolerates oxygen poorly compared with mos ...
... levels in the cell membranes of the enterococci (1 %; Bosley et al., 1990). Production of ethanol in the fermentation of glucose by TI-1T is another key feature separating TI-1T from the homofermentative Enterococci (Stiles & Holzapfel, 1997). Finally, TI-1T tolerates oxygen poorly compared with mos ...
Question 1 _____/ 30 points Question 2 _____/ 20 points Question 3
... 1/4 is the probability of getting a specific base in any one position, and 20,000,000 is the size of the genome. Note: Technically, there are actually three sites in the genome that have this nuclease recognition sequence - at the MAT locus, HMR and HML. The cleavage sites in HMR and HML are inacces ...
... 1/4 is the probability of getting a specific base in any one position, and 20,000,000 is the size of the genome. Note: Technically, there are actually three sites in the genome that have this nuclease recognition sequence - at the MAT locus, HMR and HML. The cleavage sites in HMR and HML are inacces ...
Genetics: Smoking out BRCA2
... When you're tuning a guitar, the smallest of tweaks can make a big difference to the way the instrument sounds. And in books, small changes in the way the words are put together can change how the story unfolds – little changes can have big effects. The same applies to DNA – the molecule that carrie ...
... When you're tuning a guitar, the smallest of tweaks can make a big difference to the way the instrument sounds. And in books, small changes in the way the words are put together can change how the story unfolds – little changes can have big effects. The same applies to DNA – the molecule that carrie ...
DNA Transcription All#read
... the template DNA strand and begins to catalyze production of complementary RNA. Polymerases are large enzymes composed of approximately a dozen subunits, and when active on DNA, they are also typically complexed with other factors. In many cases, these factors signal which gene is to be transcribed. ...
... the template DNA strand and begins to catalyze production of complementary RNA. Polymerases are large enzymes composed of approximately a dozen subunits, and when active on DNA, they are also typically complexed with other factors. In many cases, these factors signal which gene is to be transcribed. ...
HSV-1 - Iranian Biomedical Journal
... Keywords: Herpes simplex virus type 1 (HSV-1), PCR, DNA binding protein (UL29), Thymidine Kinase (TK, UL23), Polymorphism ...
... Keywords: Herpes simplex virus type 1 (HSV-1), PCR, DNA binding protein (UL29), Thymidine Kinase (TK, UL23), Polymorphism ...
Extrachromosomal DNA
Extrachromosomal DNA is any DNA that is found outside of the nucleus of a cell. It is also referred to as extranuclear DNA or cytoplasmic DNA. Most DNA in an individual genome is found in chromosomes but DNA found outside of the nucleus also serves important biological functions.In prokaryotes, nonviral extrachromosomal DNA is primarily found in plasmids whereas in eukaryotes extrachromosomal DNA is primarily found in organelles. Mitochondrial DNA is a main source of this extrachromosomal DNA in eukaryotes. Extrachromosomal DNA is often used in research of replication because it is easy to identify and isolate.Extrachromosomal DNA was found to be structurally different from nuclear DNA. Cytoplasmic DNA is less methylated than DNA found within the nucleus. It was also confirmed that the sequences of cytoplasmic DNA was different from nuclear DNA in the same organism, showing that cytoplasmic DNAs are not simply fragments of nuclear DNA.In addition to DNA found outside of the nucleus in cells, infection of viral genomes also provides an example of extrachromosomal DNA.