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ppt - eweb.furman.edu
ppt - eweb.furman.edu

... is called a replicon. - Bacteria have only a single replication origin, and the entire circular chromosome is replicated from this point. ...
Lecture #7 Date ______
Lecture #7 Date ______

... How long would all of the DNA contained in all of the chromosomes in a human cell be if they were connected end to end? Which chromosome consists of 5% of all the genes in the human genome? ...
DNA structure and replication power point
DNA structure and replication power point

... strain Pneumoccocus bacteria • He found that R strain could become virulent when it took in DNA from heat-killed S strain • Study suggested that DNA was probably the genetic material ...
HotStart DNA Polymerase
HotStart DNA Polymerase

... Polymerase that is activated by heat treatment. It is chemically modified to remain inactive until time, temperature and pH conditions are optimal. This results in higher specificity and greater yields when compared to standard DNA polymerases. o ...
Chapter 16 The Molecular Basis of Inheritance
Chapter 16 The Molecular Basis of Inheritance

... complementary to the DNA template into the primer.  RNA polymerases can start an RNA chain from a single template strand.  After formation of the primer, DNA pol III adds a deoxyribonucleotide to the 3’ end of the RNA primer and continues adding DNA nucleotides to the growing DNA strand according ...
The Molecular Basis of Inheritance
The Molecular Basis of Inheritance

... complementary to the DNA template into the primer.  RNA polymerases can start an RNA chain from a single template strand.  After formation of the primer, DNA pol III adds a deoxyribonucleotide to the 3’ end of the RNA primer and continues adding DNA nucleotides to the growing DNA strand according ...
The nucleotides
The nucleotides

... Each chromosome in the nucleus of a eukaryote contains one long linear molecule of double-stranded DNA, which is bound to a complex mixture of proteins to form chromatin. Eukaryotes have also closed circular DNA molecules in their mitochondria, as do plant chloroplasts. A prokaryotic organism contai ...
Genetics and Genomics in Medicine Chapter 1 Questions
Genetics and Genomics in Medicine Chapter 1 Questions

... The whole point of meiosis is to increase genetic ___1___ . That occurs in two ways. First, as a result of independent ___2____ of homologous chromosomes, sperm and egg cells contribute only one of the two alleles at each diploid locus in the two parents. Secondly, the process of ____3_____ ensures ...
CHAPTER 16 THE MOLECULE BASIS OF INHERITANCE
CHAPTER 16 THE MOLECULE BASIS OF INHERITANCE

...  In their experiments, they labeled the nucleotides of the old strands with a heavy isotope of nitrogen (15N), while any new nucleotides were indicated by a lighter isotope (14N).  Replicated strands could be separated by density in a centrifuge.  Each model—the semiconservative model, the conser ...
CHAPTER 16 THE MOLECULE BASIS OF INHERITANCE
CHAPTER 16 THE MOLECULE BASIS OF INHERITANCE

... tissues and perhaps to aging in general. ...
The Molecular Basis of Inheritance
The Molecular Basis of Inheritance

... ° In their experiments, they labeled the nucleotides of the old strands with a heavy isotope of nitrogen (15N), while any new nucleotides were indicated by a lighter isotope (14N). ° Replicated strands could be separated by density in a centrifuge. ° Each model—the semiconservative model, the conser ...
Document
Document

... Replication Models • Conservative- would leave the original strand intact and copy it. • Dispersive-would produce two DNA molecule with sections of both old and new along each strand. • Semiconservative –would produce DNA molecule with both one old strand and one new strand. ...
DNA Replication - Lakewood City School District
DNA Replication - Lakewood City School District

... Pneumoccocus bacteria  He found that R strain could become virulent when it took in DNA from heat-killed S strain  Study suggested that DNA was probably the genetic material ...
Molecular Basis of Inheritance
Molecular Basis of Inheritance

... bacteria form a pellet The supernatant is radioactive, but the pellet is not. ...
DNA replication and PCR ppt
DNA replication and PCR ppt

... fashion with bases in the other chain  A only with T, G only with C  Because of this pairing – each strand is complementary to the other 5’ ACGTC 3’ 3’ TGCAG 5’  Thus DNA is double stranded ...
Molecular Basis
Molecular Basis

... tissues and perhaps to aging in general. ...
REPLICATION, TRANSCRIPTION, TRANSLATION, Oh My!
REPLICATION, TRANSCRIPTION, TRANSLATION, Oh My!

... 1. Cut out the molecules of Deoxyribose, phosphoric acid (phosphate) and the four bases. Construct six nucleotides with the following bases: • cytosine nucleotide • thymine nucleotide • guanine nucleotide • adenine nucleotide • guanine nucleotide • cytosine nucleotide 2. Now, connect the six nucleot ...
16_LectureOutlines_LO - AP
16_LectureOutlines_LO - AP

...  In their experiments, they labeled the nucleotides of the old strands with a heavy isotope of nitrogen (15N), while any new nucleotides were indicated by a lighter isotope (14N).  Replicated strands could be separated by density in a centrifuge.  Each model—the semiconservative model, the conser ...
DNA Replication lab
DNA Replication lab

... 1. Cut out the molecules of Deoxyribose, phosphoric acid (phosphate) and the four bases. Construct six nucleotides with the following bases:  cytosine nucleotide  thymine nucleotide  guanine nucleotide  adenine nucleotide  guanine nucleotide  cytosine nucleotide 2. Now, connect the six nucleot ...
Biochemistry Lecture 20
Biochemistry Lecture 20

... • 2 DNA strands/helix • Nucleotide seq of 1 strand automatically specifies seq of complementary strand – Base pairing rule: A w/ T and G w/ C ONLY in healthy helix – Each strand can serve as template for its partner ...
Chapter 16 – The Molecular Basis of Inheritance
Chapter 16 – The Molecular Basis of Inheritance

... The fact that cells double the amount of DNA in a cell prior to mitosis and then distribute the DNA equally to each daughter cell provided some circumstantial evidence that DNA was the genetic material in eukaryotes. ...
DNA, The Genetic Material
DNA, The Genetic Material

... DNA strands “unzip” down the middle between the hydrogen bonds. Each half reconstructs its complimentary half from free floating nucleotides. The two new DNA strands each contain ½ of the original “double helix” – semiconservative. DNA unzips – origins of replication – multiple sites on DNA strand w ...
Name________________________________ Date___________
Name________________________________ Date___________

... 18. A eukaryotic cell lacking telomerase would a. be unable to make up DNA from the surrounding solution b. be unable to identify and correct mismatched nucleotides in its daughter DNA strands c. experience a gradual reduction of chromosome length with each replication cycle d. have a greater potent ...
Summary of lesson - TI Education
Summary of lesson - TI Education

... What is the difference between the leading strand and the lagging strand? Sample Answer: direction of replication, requires additional primers Both strands replicate with the same enzymes, but the lagging strand must replicate in short segments to make up for replicating away from the direction of t ...
Summary of lesson
Summary of lesson

... What is the difference between the leading strand and the lagging strand? Sample Answer: direction of replication, requires additional primers Both strands replicate with the same enzymes, but the lagging strand must replicate in short segments to make up for replicating away from the direction of t ...
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Telomere



A telomere is a region of repetitive nucleotide sequences at each end of a chromatid, which protects the end of the chromosome from deterioration or from fusion with neighboring chromosomes. Its name is derived from the Greek nouns telos (τέλος) 'end' and merοs (μέρος, root: μερ-) 'part.' For vertebrates, the sequence of nucleotides in telomeres is TTAGGG. This sequence of TTAGGG is repeated approximately 2,500 times in humans. During chromosome replication, the enzymes that duplicate DNA cannot continue their duplication all the way to the end of a chromosome, so in each duplication the end of the chromosome is shortened (this is because the synthesis of Okazaki fragments requires RNA primers attaching ahead on the lagging strand). The telomeres are disposable buffers at the ends of chromosomes which are truncated during cell division; their presence protects the genes before them on the chromosome from being truncated instead.Over time, due to each cell division, the telomere ends become shorter. They are replenished by an enzyme, telomerase reverse transcriptase.
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