• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
DNA - South Gibson Science
DNA - South Gibson Science

... If 60% A-T; then 40% C-G Therefore,40% C-G would be 20% Guanine = __% Cytosine ...
DNA polymerase
DNA polymerase

...  The second stage requires the use of oligonucleotides called DNA primers, which are simply short sections of single stranded DNA. The primers will find the specific nucleotide complimentary sequence on both template strands and anneal to them giving a starting point from which copies can be made. ...
Notes Packet - Ms. Ottolini`s Biology Wiki!
Notes Packet - Ms. Ottolini`s Biology Wiki!

... we will learn about different types of mutations.) ...
Supplementary Methods
Supplementary Methods

... gene of S. cerevisiae, PCR amplified with oligonucleotides PGKterm1 (5'AACCGCGGAAATTGAATTGAATTGAA-3') and PGKterm2 (5'AAGAGCTCGCAGAATTTTCGAGTTAT-3') was inserted into the SstI and SstII sites of the resulting plasmid to create p14201. The oligonucleotide CCVCs (5'CGATTACAAGGACGACGATGACAAGTGTTGCGTTT ...
O - IS MU
O - IS MU

... Gout (primary gout) is a metabolic disease caused by accumulation of excess urate in body fluids due to the miscontrol of endogenous purine de novo synthesis supported by high intake of purines in the diet. The crystals of monosodium urate are deposited in tissues, particularly in kidneys (may resul ...
Chapter Eleven: Chromosome Structure and Transposable Elements
Chapter Eleven: Chromosome Structure and Transposable Elements

... Such a fly may be homozygous (female) or hemizygous (male) for an allele of the white-eye locus that contains a transposon insertion. The eye cells in these flies cannot make red pigment. During eye development, the transposon may spontaneously transpose out of the white-eye locus, restoring functio ...
Chapter 10 #1
Chapter 10 #1

... expressed as proteins, which provide the molecular basis for – Demonstratingphenotypic the connectionstraits between genes and proteins – The one gene–one enzyme hypothesis was based on studies of inherited metabolic diseases – The one gene–one protein hypothesis expands the relationship to proteins ...
DNA Replication
DNA Replication

... DNA Math Example There are 500 total bases in a specific DNA molecule. Of the 500 bases, 100 are A’s.  How many are T’s?  How many are C’s?  How many are G’s? ...
Transcription lecture notes
Transcription lecture notes

... primary catalytic unit. This enzyme is responsible for synthesis of all bacterial RNA (except primers for DNA synthesis), in contrast to multiple dedicated enzymes, which synthesize discrete RNA species in Eukaryotes. (The core RNA pol in at least many bacteria also contains an omega subunit, but om ...
What is Transcription
What is Transcription

... 2. Transcription Factors - a collection of proteins that help RNA polymerase recognize and bind to the promoter. 3. RNA Polymerase II - the enzyme responsible for transcribing the pre-mRNA strand. 4. Terminator - a sequence of nucleotides that signals the end of transcription. 5. 5’ Cap – The 5’ end ...
Unit 3 notes
Unit 3 notes

... 2) The deoxyribose and phosphate portions of the nucleotides are on the outside of the molecule forming the _________________ and the nitrogen bases are on the inside forming the _______________________. 3) Each nucleotide is connected to the other nucleotides in the same chain by __________________ ...
DNA, RNA and Protein Synthesis
DNA, RNA and Protein Synthesis

... nucleotides to the growing strand it ALSO proofreads for errors! • When an error does happen we call this a MUTATION – This has potential to change or harm the cell’s function ...
Identification of Saccharomyces cerevisiae Genes Whose Deletion
Identification of Saccharomyces cerevisiae Genes Whose Deletion

... results). ump1D cells with decreased nuclear Pif1 may be inviable due to strain on the proteasomal machinery. As with CDH1, the synthetic effects of pif1-m2 and ump1D may result from impaired Pif1 proteolysis. YCK1 encodes a palmitoylated membrane-bound casein kinase that is involved in endocytic tr ...
3. - Haverford Alchemy
3. - Haverford Alchemy

... From Table 25.2 we see that dTMP is deoxythymidine 5'-monophosphate. Therefore, the nitrogen base in this nucleotide is thymine, whose structure is shown in Table 25.1. This base must be bonded (by replacing the H that is red in Table 25.1) to the 1' position of the deoxyribose, and there must be a ...
CHROMOSOMES
CHROMOSOMES

... The tip of each chromosome arm is known as the telomere. Telomeres play a crucial role in sealing the ends of chromosomes and maintaining their structural integrity. Telomeres have been highly conserved throughout evolution and in humans they consist of many tandem repeats of a TTAGGG sequence. Duri ...
2008 exam with answers
2008 exam with answers

... Long Explanation: Results show you can replicate DNA without the 3’ to 5’ exo or polymerase activity of enzyme X, but not without the 5’ to 3’ exo. Therefore it must be the 5’ to 3’ exo of enzyme X that is critical in DNA replication, and cannot be replaced by action of another enzyme. The function ...
CHROMOSOMES
CHROMOSOMES

... – The tip of each chromosome arms in named telomere ...
File - Central Dogma of Molecular Biology
File - Central Dogma of Molecular Biology

... chromosome, we encounter what are known as telomeres, and they create a problem for linear DNA. • At the end of the lagging strand, when the RNA primer is removed, there is no free 3’ end to which nucleotides can be added. • Telomeres consist of multiple repetitions of one short nucleotide sequence. ...
DNA structure and replication notes
DNA structure and replication notes

... Shortly after the onset of infection, they agitated the cultures in a blended to shake loose any parts of the phages that remained outside the bacterial cells. They then spun the mixtures in a centrifuge. The cells were deposited as a pellet at the bottom of the centrifuge tubes, but phages and part ...
Why don’t antibodies get rid of HIV?
Why don’t antibodies get rid of HIV?

... The sugar in RNA contains an additional OH group, so is ribose, not deoxyribose. ...
Chapter 16 Presentation
Chapter 16 Presentation

... we encounter what are known as telomeres, and they create a problem for linear DNA. • At the end of the lagging strand, when the RNA primer is removed, there is no free 3’ end to which nucleotides can be added. • Telomeres consist of multiple repetitions of one short nucleotide sequence. ...
Chromosome rearrangements in sublines of human embryonic stem
Chromosome rearrangements in sublines of human embryonic stem

... detailed genetic analysis are indicated prior to any application of hESCs. Molecular cytogenetic analysis of two different hESC sublines was performed and revealed aberrant chromosomes in both of them, i.e. in hESM01r18 (46,ХХ,-18,+mar) and hESM0309 (46,ХХ,del(4),dup(9)). This study shows that micro ...
Test File
Test File

... 23. Some DNA polymerases have a nuclease activity that allows them to remove mismatched nucleotides and repair a sequence. 24. DNA replication starts at sites called replication forks. 25. Telomere sequences form loops at the ends of eukaryotic chromosomes. 26. Telomerase extends the ends of linear ...
Slide 1
Slide 1

... the joining of thymine bases in DNA. If the joined thymine bases are not fixed by repair enzymes, they interfere with DNA replication. They may cause skin cancer. The earth is protected from UV radiation by a layer of ozone molecules. The use of chemicals called CFCs has caused ozone levels to decre ...
Lecture Slides forNucleic Acids
Lecture Slides forNucleic Acids

... sequence is not methylated. The nuclease clips each strand between the 5' G and A of the unmethylated recognition site 5'-G AATTC-3' 3'-CTTAA G-5' The resulting overhangs are "sticky ends" - they will base pair with a complementary sequence. ...
< 1 ... 11 12 13 14 15 16 17 18 19 ... 55 >

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.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report