Chapter 12: DNA
... DNA must get copied BEFORE a cell can divide Occurs during late interphase (S phase) DNA “unzips” into 2 strands 2 new complementary strands are produced Each new copy has one original strand and one new strand • DNA polymerase: An enzyme that joins individual nucleotides to produce a new strand of ...
... DNA must get copied BEFORE a cell can divide Occurs during late interphase (S phase) DNA “unzips” into 2 strands 2 new complementary strands are produced Each new copy has one original strand and one new strand • DNA polymerase: An enzyme that joins individual nucleotides to produce a new strand of ...
Bio 93 Quiz 4: Master Copy
... 7) You briefly expose bacteria undergoing DNA replication to radioactively labeled nucleotides. When you centrifuge the DNA isolated from the bacteria, the DNA separates into two classes. One class of labeled DNA includes very large molecules (thousands or even millions of nucleotides long), and the ...
... 7) You briefly expose bacteria undergoing DNA replication to radioactively labeled nucleotides. When you centrifuge the DNA isolated from the bacteria, the DNA separates into two classes. One class of labeled DNA includes very large molecules (thousands or even millions of nucleotides long), and the ...
Exam #3 Study Guide
... Frameshift mutations may be caused by A specific gene is always found on only one strand of the DNA double helix. The strand that is not being transcribed into mRNA is called the: Which of the following could have a role in the reason that few mistakes occur in the process of DNA replication? Finish ...
... Frameshift mutations may be caused by A specific gene is always found on only one strand of the DNA double helix. The strand that is not being transcribed into mRNA is called the: Which of the following could have a role in the reason that few mistakes occur in the process of DNA replication? Finish ...
The Replication of DNA
... There is no inherent toplogical linkage after the replication of a linear molecule , the large size of the eukaryotic chromsomes necessitates the intrcate folding of the DNA into loops attached to a protein scaffold , and these loops must separated by topoisomerases . ...
... There is no inherent toplogical linkage after the replication of a linear molecule , the large size of the eukaryotic chromsomes necessitates the intrcate folding of the DNA into loops attached to a protein scaffold , and these loops must separated by topoisomerases . ...
12-1 Practice 12-1 Write the complementary strand of DNA to the
... Remember, A pairs with T and G pairs with C. Go through the original 5′′ to 3′′ sequence pairing each A with T and each C with G. Keep in mind that the complementary strand will read from left to right in the 3′′ to 5′′ direction. Therefore, the complementary strand starts with 3’ and ends with 5’. ...
... Remember, A pairs with T and G pairs with C. Go through the original 5′′ to 3′′ sequence pairing each A with T and each C with G. Keep in mind that the complementary strand will read from left to right in the 3′′ to 5′′ direction. Therefore, the complementary strand starts with 3’ and ends with 5’. ...
I Want to LIve Forever…
... In 1978, a study appeared by biologist (and later Nobel prize winner) Elizabeth Blackburn. She demonstrated that the two ends of a chromosome, or telomeres, contain dozens of repeats of one particular sequence of nitrogenous bases (in humans TTAGGG). Every time the cell divides, the telomeres become ...
... In 1978, a study appeared by biologist (and later Nobel prize winner) Elizabeth Blackburn. She demonstrated that the two ends of a chromosome, or telomeres, contain dozens of repeats of one particular sequence of nitrogenous bases (in humans TTAGGG). Every time the cell divides, the telomeres become ...
ppt presentation
... – harboring regions surrounding coding sequences to nuclear protein matrix – AT rich, colocalize with „insulators“ (sequences that prevent spreading of ...
... – harboring regions surrounding coding sequences to nuclear protein matrix – AT rich, colocalize with „insulators“ (sequences that prevent spreading of ...
dna structure - Siegel Science
... DNA Replication Steps 1. Begins at ORIGIN of replication 2. DNA Helicase unzips parent DNA strand 3. DNA Polymerase adds complementary nucleotides to 3’ end of leading strand (in the 5’ 3’ direction) (continuous) 4. The opposite happens for the lagging strand, 5’ 3’ direction (discontinuous ...
... DNA Replication Steps 1. Begins at ORIGIN of replication 2. DNA Helicase unzips parent DNA strand 3. DNA Polymerase adds complementary nucleotides to 3’ end of leading strand (in the 5’ 3’ direction) (continuous) 4. The opposite happens for the lagging strand, 5’ 3’ direction (discontinuous ...
Biology 303 EXAM II 3/14/00 NAME
... A. in a 5' to 3' direction on the leading strand, but in a 3' to 5' direction on the lagging strand. B. in a 3' to 5' direction on the leading strand, but in a 5' to 3' direction on the lagging strand. C. in a 5' to 3' direction on both the leading and lagging strands. D. in a 3' to 5' direction on ...
... A. in a 5' to 3' direction on the leading strand, but in a 3' to 5' direction on the lagging strand. B. in a 3' to 5' direction on the leading strand, but in a 5' to 3' direction on the lagging strand. C. in a 5' to 3' direction on both the leading and lagging strands. D. in a 3' to 5' direction on ...
energy exploration - Synergy Worldwide
... D-Ribose, a pentose sugar, is also critical to cellular energetics because of its incorporation into the ATP chemical structure. Ribose facilitates the formation of the high-energy ATP molecule. Myocardial cells appear to benefit the most from ribose supplementation because these heart muscle cells ...
... D-Ribose, a pentose sugar, is also critical to cellular energetics because of its incorporation into the ATP chemical structure. Ribose facilitates the formation of the high-energy ATP molecule. Myocardial cells appear to benefit the most from ribose supplementation because these heart muscle cells ...
Organelles - Biology Junction
... 15. RNA polymerase attaches to sites on DNA called _______________ which mark the beginning of the DNA chain that will be _______________. 16. Promoters in eukaryotes are followed by _____________ and ______________. 17. When RNA polymerase binds to the promoter, the DNA strands ____________ and ___ ...
... 15. RNA polymerase attaches to sites on DNA called _______________ which mark the beginning of the DNA chain that will be _______________. 16. Promoters in eukaryotes are followed by _____________ and ______________. 17. When RNA polymerase binds to the promoter, the DNA strands ____________ and ___ ...
Learning Guide:
... o Describe the structure of DNA and the building blocks (nucleotides), explain the difference between purines and pyrimidines Many proteins work together in DNA replication and repair o Explain the purpose of DNA replication and why it is called semiconservative o Study the text and diagrams on pg ...
... o Describe the structure of DNA and the building blocks (nucleotides), explain the difference between purines and pyrimidines Many proteins work together in DNA replication and repair o Explain the purpose of DNA replication and why it is called semiconservative o Study the text and diagrams on pg ...
DNA Replication Worksheet
... 16. Sentence Arrange – Put the steps of DNA replication in the correct order by writing a number in the space before each statement. (1-4) ______ Two new, identical molecules of DNA are formed. ______ Helicase begins to break the hydrogen bonds between nitrogen bases to unzip the DNA. ______ Cell ca ...
... 16. Sentence Arrange – Put the steps of DNA replication in the correct order by writing a number in the space before each statement. (1-4) ______ Two new, identical molecules of DNA are formed. ______ Helicase begins to break the hydrogen bonds between nitrogen bases to unzip the DNA. ______ Cell ca ...
Worksheet 6 - Iowa State University
... 5. What roll does conformational changes play in transcription? Why are they important? ...
... 5. What roll does conformational changes play in transcription? Why are they important? ...
Zoo/Bot 3333
... answers to questions relevant to topics we have recently been discussing in lecture. They are not in your textbooks. 1. It has been documented for many years that stress can have deleterious effects on health. A recently reported study out of the lab of a Nobel Prize winner has shown a link between ...
... answers to questions relevant to topics we have recently been discussing in lecture. They are not in your textbooks. 1. It has been documented for many years that stress can have deleterious effects on health. A recently reported study out of the lab of a Nobel Prize winner has shown a link between ...
DNA - Images
... • With a partner, you will each paint 4 popsicle sticks • Let the sticks dry • Label the sticks as A-T or C-G bases • We will place pipe cleaners on them to make a double helix ...
... • With a partner, you will each paint 4 popsicle sticks • Let the sticks dry • Label the sticks as A-T or C-G bases • We will place pipe cleaners on them to make a double helix ...
Study Questions for Chapter 16: The Molecular Basis of Inheritance
... Study Questions for Chapter 16: The Molecular Basis of Inheritance 1) Summarize the experiments performed by Alfred Hershey and Martha Chase which proved that DNA is the genetic material in the bacteriophage known as T2. ...
... Study Questions for Chapter 16: The Molecular Basis of Inheritance 1) Summarize the experiments performed by Alfred Hershey and Martha Chase which proved that DNA is the genetic material in the bacteriophage known as T2. ...
8.2 * 8.3 Notes
... molecule that carries most of the genetic instructions used in the development, functioning and reproduction of all known living organisms and many viruses. ...
... molecule that carries most of the genetic instructions used in the development, functioning and reproduction of all known living organisms and many viruses. ...
Chapter 9
... has a sequence that pairs with the C+A-rich repeats. • One of the protein subunits is a reverse transcriptase that uses the RNA as template to synthesis the G+T-rich sequence. ...
... has a sequence that pairs with the C+A-rich repeats. • One of the protein subunits is a reverse transcriptase that uses the RNA as template to synthesis the G+T-rich sequence. ...
DNA Structure and DNA Replication Practice Problems
... Hayflick limit of about 110), while those of short -lived species have smaller Hayflick limit (e.g. mice live 2-3 years and have a Hayflick limit of about 10-15). The Hayflick limit appears to be related to the length of the telomeres associated with that species. Although cells continue living when ...
... Hayflick limit of about 110), while those of short -lived species have smaller Hayflick limit (e.g. mice live 2-3 years and have a Hayflick limit of about 10-15). The Hayflick limit appears to be related to the length of the telomeres associated with that species. Although cells continue living when ...
DNA Structure
... • DNA makes RNA which makes protein • To be a genetic molecule, DNA must: replicate, store info, express info, vary by mutation ...
... • DNA makes RNA which makes protein • To be a genetic molecule, DNA must: replicate, store info, express info, vary by mutation ...
DNA Replication and Cancer
... As replication fork moves along DNA, synthesis of one strand follows the movement of rep. fork… and synthesis on the other strand goes the other direction, away from rep. fork… i. Leaves gap in newly made strand. ii. These gaps are later joined together by enzyme DNA ligase ...
... As replication fork moves along DNA, synthesis of one strand follows the movement of rep. fork… and synthesis on the other strand goes the other direction, away from rep. fork… i. Leaves gap in newly made strand. ii. These gaps are later joined together by enzyme DNA ligase ...
8.3 DNA Replication
... • DNA is replicated during the S (synthesis) stage of interphase Overview: • A single strand of DNA serves as a template for a new strand. • The rules of base pairing direct replication. – A pairs with T – C pairs with G • Each body cell gets a complete set of identical DNA. ...
... • DNA is replicated during the S (synthesis) stage of interphase Overview: • A single strand of DNA serves as a template for a new strand. • The rules of base pairing direct replication. – A pairs with T – C pairs with G • Each body cell gets a complete set of identical DNA. ...
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.