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FinalExamStudyGuideSemester1
FinalExamStudyGuideSemester1

... 3) What are gametes? What type of cellular division makes them? 4) What type of cellular division are sperm and eggs made from? 5) Which organ is responsible for making sperm in men? 6) Which organ is responsible for making and storing eggs in women? 7) What are the possible gametes from the followi ...
From Mendel to DNA
From Mendel to DNA

... 3. The development of the microscope played an important part in helping to convince people that Mendel was right. How? 4. Explain with reference to the structure of DNA the saying ‘One gene, one protein’. ...
The Human Genome Project and Ectodermal Dysplasia March 2001
The Human Genome Project and Ectodermal Dysplasia March 2001

... There are about three thousand million base pairs of DNA in the human genome, distributed on the 24 different chromosomes visible under the microscope (the twentytwo pairs of autosomes, numbered 1-22, and the two sex chromosomes, X and Y). Buried and dispersed within this massive quantity of DNA are ...
UNIT 4 PART1 MODERN GENETICS
UNIT 4 PART1 MODERN GENETICS

Word document
Word document

... Name two species of Homo other than sapiens What were some of the main differences between the Australopithecines and the Homo that came later? What dates are associated with the major fossil hominids? Where were the Australopithecines found? How are human feet different from those of other hominids ...
Mutation and DNA
Mutation and DNA

Teacher Resource 8: Genetic engineering
Teacher Resource 8: Genetic engineering

... 10. These bacteria are now called transgenic bacteria as they have DNA from another organism. They can now be grown in large numbers commercially and the insulin collected. ...
3rd- 9 Weeks Test Review
3rd- 9 Weeks Test Review

... 2. The portions of DNA that carry genetic information are called genes. ü Genes contain a specific sequence of nucleotides that contain the instructions for making proteins. ü The proteins determine which physical characteristics an organism displays. ...
Answer Key Lab DNA Structure
Answer Key Lab DNA Structure

What is Cloning?
What is Cloning?

... US Department of Energy ...
Slide 1
Slide 1

... organisms that have acquired a gene from another species or organism ex – “super mice” in 1980’s used this in mice so that they could produce a human protein needed for clotting. ...
Slide 1
Slide 1

... Sequences of 3 bases in RNA code for a single amino acid There are 64 possible ‘triplets’ that can be formed from the 4 different bases, but there are only 20 amino acids (AA) In most cases, more than one type of triplet codes for a given AA For example, CAA and CAG both code for the same AA, glutam ...
DNA Sequencing
DNA Sequencing

... 1. You have a familiar history of a terminal genetic disease. A genetic test exists for the disease. Would you take the test to see if you will have the ...
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Genetics

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No Slide Title

... B. Unique restriction site Multiple cloning site ( polylinker) FIGURE 20.3 C. Origin of replication ...
Transgenic Organisms
Transgenic Organisms

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Deoxyribonucleic acid from calf thymus (D4522)
Deoxyribonucleic acid from calf thymus (D4522)

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Practice Quizzes for Honors Biology Unit 3
Practice Quizzes for Honors Biology Unit 3

... Chapter  26:  Control  of  Gene  Expression  and  Cancer   1. How  do  cells  become  specialized  when  they  all  contain  the  exact  same  DNA?   2. For  the  operon;  name  the  participant  that:   a. transcribes  the  DNA  into   ...
Rekayasa Genetika
Rekayasa Genetika

... • Free pyrimidines and purines are weakly basic compounds and called bases. • They have a property with important consequences for the structure, electron distribution, and light absorption of nucleic acids. ...
Final Exam Review (Spring 09)
Final Exam Review (Spring 09)

... 3. Tell how DNA codes for protein (DNA  mRNA  construction of a protein). 4. Describe the history of how DNA was discovered and studied, including the names of the scientists and what year its structure was identified. 5. Construct a chain of DNA (12 bases), and then translate the message into a ...
The process represented in the diagram below occurs in many cells
The process represented in the diagram below occurs in many cells

... Base  your  answers  to  questions  32  and  33  on  the  statement  below  and  on  your  knowledge  of  biology.   Scientists  have  found  a  gene  in  the  DNA  of  a  certain  plant  that  could  be  the  key  to  increasin ...
name
name

... Plant and Animal cell differences found (Cell division) (p. 285) The phases of the cell cycle in eukaryotes (know what occurs in each phase) a. INTERPHASE 1) G1 2) S 3) G2 b. MITOSIS (M phase) 1) prophase 2) metaphase 3) anaphase 4) telophase c. CYTOKINESIS Label Each Stage (Some pictures are in the ...
Selfish DNA and the wonderful world of RNA
Selfish DNA and the wonderful world of RNA

... They have been called "junk" DNA and "selfish" DNA.  "selfish" because their only function seems to make more copies of themselves and  "junk" because there is no obvious benefit to their host. ...
HGP - eduBuzz.org
HGP - eduBuzz.org

... Uses physical properties of DNA (size and charge) to separate molecules Gel electrophoresis involves running an electric current through an agarose gel. DNA is loaded into wells at the negative end. DNA is repelled, and moves through the agarose gel at different speeds depending on the size of a fra ...
DNA Strand 1 - Duncanville ISD
DNA Strand 1 - Duncanville ISD

... 1. How many amino acids were made from this strand of DNA? _______ 2. How many proteins were made from this strand of DNA? ________ Codon Charts: knowing how to All of the amino the amino acids ...
< 1 ... 437 438 439 440 441 442 443 444 445 ... 481 >

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.
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