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AP Exam 5 Study Guide
AP Exam 5 Study Guide

DNA Transcription
DNA Transcription

... Transfer RNA • Transfer RNA brings the correct amino acids for the ribosome to use • Has an ANTI – CODON on one end, and an amino acid on the other • Anti-codon has a sequence complementary to an mRNA codon ...
Genetic Engineering / Recombinant DNA technology Genetic
Genetic Engineering / Recombinant DNA technology Genetic

... division as does the bacterial chromosome; their replication is said to be under stringent control. The plasmids used in molecular cloning, however, are under relaxed control; they are normally present in 10 to as many as 700 copies per cell. Since plasmids are small stretches of DNA sequences they ...
DNA REPLICATION, PROTEIN SYNTHESIS AND MUTATIONS
DNA REPLICATION, PROTEIN SYNTHESIS AND MUTATIONS

... Deoxyribonucleic acid (DNA) controls the cell's activities by directing the formation of specific kinds of proteins in specific quantities. Proteins function as enzymes, as transport molecules in membranes, as regulatory proteins, as receptor molecules, etc. In fact, it is proteins that are responsi ...
Biotechnology II Recombinant DNA File
Biotechnology II Recombinant DNA File

... replaced with recombinant DNA gene of interest 2. Plants infected with the bacteria will contain the gene of interest in their genome 3. The new plant grows and expresses the transferred gene 4. Micropropagation allows for many identical plants to be produced quickly ...
RNA - jpsaos
RNA - jpsaos

... What happens when RNA polymerase binds to a promoter? ...
DNA TEST
DNA TEST

... 18. The DNA of a certain organism has cytosine as 22% of its bases. What percentage of the bases are thymine? a) 28% b) 78% c) 50% d) 22% 19. Semi conservative replication means that a) Sometimes DNA can replicate and sometimes it cannot, this accounts for aging b) Sometimes newly made DNA molecules ...
DNA Structure and Function
DNA Structure and Function

chapt09_lecture
chapt09_lecture

... – Genome of cells – DNA – Genome of viruses – DNA or RNA • DNA complexed with protein constitutes the genetic material as chromosomes • Bacterial chromosomes are a single circular loop • Eukaryotic chromosomes are multiple and linear ...
Replication
Replication

... DNA polymerase cannot synthesize primers . The cell uses for this purpose the RNA polymerase enzyme, which does not require a primer (see section Transcription and Open Reading Frame). This special RNA polymerase, which is not sequence-selective, is called primase (see cartoon above). For DNA polym ...
DNA - NRF IR Repository
DNA - NRF IR Repository

... material of the cell. It is found in the chromosomes in the nucleus of the cell, as well as in other cellular organelles like the mitochodria in animals and chloroplasts in plants. DNA is the biological code that contains the genetic instructions used in the development and functioning of all living ...
HOW TO GET A CEA DNA TEST DONE
HOW TO GET A CEA DNA TEST DONE

... A discount has been arranged for Society members for DNA CEA Testing through OptiGen. By quoting the Society's discount code you will receive an automatic discount of 20%. DISCOUNT CODE FOR 2015 is ISDS15. If your vet submits the test on line then a further 5% discount will be applied. UK Members ar ...
DNA marker analysis - Central Magnet School
DNA marker analysis - Central Magnet School

... are short DNA sequences called Short Tandem Repeats (STRs) STRs – region of DNA composed of a short sequence of nucleotides repeated many times. # of repeated sequences vary Alternate forms of STRs correspond with different alleles. ...
DNA notes 2015 - OG
DNA notes 2015 - OG

... - DNA makes a copy of itself - Important during meiosis & mitosis – DNA gets passed on to daughter cells • DNA polymerase adds nucleotides to the parent strands and checks the strand for errors • Each double helix now has 1 old strand & 1 new strand •This is called SEMI-CONSERVATIVE • If the origina ...
DNA Mutations - pams
DNA Mutations - pams

... catch and repair most of the changes that occur in DNA.  Mutations in eukaryotic cells are rare.  In somatic cells any good or bad consequences will not be passed on to offspring.  If a mutation occurs in a gamete it may be passed to the next generation. ...
The human genome of is found where in the human body?
The human genome of is found where in the human body?

... All cells require a copy of the genome ...
Mitochondrial DNA - MrsWrightsSciencePage
Mitochondrial DNA - MrsWrightsSciencePage

... People who are related have similar DNA - so we have to be sure that the regions we are coding are large enough to account for this Human Mating is not random Neither is Violent Crime - most violent crime is committed by someone the victim knew. ...
finding the gene to go into the plasmid
finding the gene to go into the plasmid

... - heat filter paper to denature DNA - wash filter paper with radioactive probe which will only attach to gene of interest ...
Protein Synthesis
Protein Synthesis

... DNA “message” from the nucleus to the rest of the cell ii. tRNA – transfer RNA – brings or “transfers” amino acids from the cytoplasm to the ribosomes to assemble proteins iii.rRNA – ribosomal RNA – helps ...
Ch 12 Molecular Genetics
Ch 12 Molecular Genetics

...  Hox genes are responsible for the general body pattern of most animals.  Hox genes code for transcription factors that are active in zones of the embryo that are in the same order as the genes on the chromosome ...
DNA - Madison Public Schools
DNA - Madison Public Schools

... Polymers are very large molecules put together by linking units called monomers The monomers of DNA are called nucleotides. ...
Simulated Biodiversity Lab - ABC
Simulated Biodiversity Lab - ABC

Botana curus - ABC-MissAngelochsBiologyClass
Botana curus - ABC-MissAngelochsBiologyClass

... combination of their genes. However if we were to compare your DNA to your parents it would be similar. ...
Genetic Engineering
Genetic Engineering

Name: Date: Transcription and Translation Worksheet – ANSWER
Name: Date: Transcription and Translation Worksheet – ANSWER

... 6) If a substitution occurred to the 6th base in the DNA template strand, such that cytosine was changed to thymine, would the final protein change? Why? No. Initially, the DNA strand had the triplet TTC – this created the mRNA codon AAG. If we change the template to TTT, the new codon would be AAA. ...
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Nucleosome



A nucleosome is a basic unit of DNA packaging in eukaryotes, consisting of a segment of DNA wound in sequence around eight histone protein cores. This structure is often compared to thread wrapped around a spool.Nucleosomes form the fundamental repeating units of eukaryotic chromatin, which is used to pack the large eukaryotic genomes into the nucleus while still ensuring appropriate access to it (in mammalian cells approximately 2 m of linear DNA have to be packed into a nucleus of roughly 10 µm diameter). Nucleosomes are folded through a series of successively higher order structures to eventually form a chromosome; this both compacts DNA and creates an added layer of regulatory control, which ensures correct gene expression. Nucleosomes are thought to carry epigenetically inherited information in the form of covalent modifications of their core histones.Nucleosomes were observed as particles in the electron microscope by Don and Ada Olins and their existence and structure (as histone octamers surrounded by approximately 200 base pairs of DNA) were proposed by Roger Kornberg. The role of the nucleosome as a general gene repressor was demonstrated by Lorch et al. in vitro and by Han and Grunstein in vivo.The nucleosome core particle consists of approximately 147 base pairs of DNA wrapped in 1.67 left-handed superhelical turns around a histone octamer consisting of 2 copies each of the core histones H2A, H2B, H3, and H4. Core particles are connected by stretches of ""linker DNA"", which can be up to about 80 bp long. Technically, a nucleosome is defined as the core particle plus one of these linker regions; however the word is often synonymous with the core particle. Genome-wide nucleosome positioning maps are now available for many model organisms including mouse liver and brain.Linker histones such as H1 and its isoforms are involved in chromatin compaction and sit at the base of the nucleosome near the DNA entry and exit binding to the linker region of the DNA. Non-condensed nucleosomes without the linker histone resemble ""beads on a string of DNA"" under an electron microscope.In contrast to most eukaryotic cells, mature sperm cells largely use protamines to package their genomic DNA, most likely to achieve an even higher packaging ratio. Histone equivalents and a simplified chromatin structure have also been found in Archea, suggesting that eukaryotes are not the only organisms that use nucleosomes.
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