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Core Topic 2: Molecular biology 21 hours Essential idea: Living
Core Topic 2: Molecular biology 21 hours Essential idea: Living

... Nature of science: Looking for patterns, trends and discrepancies—most but not all organisms assemble proteins from the same amino acids. (3.1) Understandings:  Amino acids are linked together by condensation to form polypeptides.  There are 20 different amino acids in polypeptides synthesized on ...
4mb ppt
4mb ppt

... positions on each of the chromosomes. These resulted from repeated insertions of transposons into new sites during the evolution of modern organisms. (Or to the action of enzymes encoded by transposons on other ...
SEMESTER 2 Toxicology/Drug Testing
SEMESTER 2 Toxicology/Drug Testing

... DNA ANALYSISo Define: amino acids, chromosome, complementary base pairing, deoxyribonucleic acid (DNA), electrophoresis, restriction enzymes, short tandem repeat (STR), Y-STR. o Name the parts of a nucleotide and how they fit together to form DNA. o Define restriction enzyme, how they work and thei ...
AP Biology Potential Essay Questions for Unit 4
AP Biology Potential Essay Questions for Unit 4

... d. Multiple gene/polygenic inheritance e. Multiple alleles 3. Experiments by the following scientists provided critical information concerning DNA. Briefly describe each classical experiment and indicate how it provided evidence for the chemical nature of the gene. a. Hershey and Chase b. Griffith a ...
0101BWhat characterizes a prokaryotic cell
0101BWhat characterizes a prokaryotic cell

... d) the number of isotopes of the atom b) the number of electrons in the outermost shell e) none of the above is correct c) the number of neutrons in the nucleus __21) The atomic number of nitrogen is 7. 15N is heavier than 14N because 15N has: a) eight protons b) eight neutrons c) seven protons d) s ...
AP Biology Potential Essay Questions for Unit 3
AP Biology Potential Essay Questions for Unit 3

... d. Multiple gene/polygenic inheritance e. Multiple alleles 3. Experiments by the following scientists provided critical information concerning DNA. Briefly describe each classical experiment and indicate how it provided evidence for the chemical nature of the gene. a. Hershey and Chase b. Griffith a ...
Relationships and Biodiversity
Relationships and Biodiversity

... paper. When the pigments separated as they went up the paper you could see which plants had the same colors (protein pigments) as Botana curis. The plant(s) with the same pigments are more likely to be related.  The second molecular test involved searching for an enzyme called M. In this part you p ...
Final Exam Study Guide 2015
Final Exam Study Guide 2015

... ◦ Be able to perform Punnett squares for standard inheritance, codominance, incomplete dominance, sexlinked inheritance, and multiple alleles (blood type) and predict genotype and phenotype ratios ◦ Understand and be able to define each form of inheritance listed above Genetic Disorders ◦ Know how a ...
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Slide

... to alter or redesign the gene and transfer it back into cells in culture or insert it into animals and plants. – Provides a means to study the function of proteins and their domains – Used to detect mutations that are responsible for genetic diseases, in forensic science to identify or acquit suspec ...
Alveoli - greinerudsd
Alveoli - greinerudsd

... sperm nucleus fuses with polar nuclei  triploid cell that develops into endosperm Fertilization: union of sperm and egg Endosperm: Transfers nutrients from mother plant to embryo. Some species – completely digested by embryo, others… endosperm persists as nutrient source for young plant until photo ...
Biology Syllabus 2015-2016 Toombs County High School Teacher
Biology Syllabus 2015-2016 Toombs County High School Teacher

... the interdependence of organisms, matter, energy and organization in living systems, and the adaptive responses of organisms. SB1. Students will analyze the nature of the relationships between structures and functions in living cells. a. Explain the role of cell organelles for both prokaryotic and e ...
mutations[1]
mutations[1]

...  UV light can induce adjacent thymine bases in a DNA strand to pair with each other, as a bulky dimer.  DNA has so-called hotspots, where mutations occur up to 100 times more frequently than the normal mutation rate. A hotspot can be at an unusual base, e.g., 5-methylcytosine. Mutation rates also ...
Biotechnology and Recombinant DNA I. Tools of Biotechnology
Biotechnology and Recombinant DNA I. Tools of Biotechnology

... • This bacterium naturally infects plants and introduces foreign DNA into the plant cell nucleus resulting in neoplastic growth (produces a plant gall – i.e., tumour) and the abnormal production of amino acid derivatives known as opines. The bacterium is capable of metabolizing opines as a source of ...
File - Ms. D. Science CGPA
File - Ms. D. Science CGPA

... A gene is a section of a DNA molecule that contains the code for one specific protein. That code is a series of bases in a specific order—for example, ATGA CGTA C. A single gene may contain several hundred to a million or more bases. Order of the Bases pg. 411 The code each gene contains determines ...
Biology
Biology

... in excess of substrate. Which of the following statement is FALSE? A. If the concentration of enzyme is increased in the above reaction mixture, X amount of maltose will be produced in less than 10 minutes. B. If the volume of starch is increased in the above reaction mixture, more than X amount of  ...
Answer Key (up to 3/21)
Answer Key (up to 3/21)

... a. dNTP = deoxyribonucleoside triphosphate b. dNTPs contain a triphosphate, however, the phosphodiester bonds formed in the DNA helix require only one of these phosphates. Therefore, two of the phosphates are cleaved off. Keep in mind that, similar to ATP, these phosphates have repulsion caused by t ...
The Origin of Life - Earth Life, “Weird Life” and Astrobiology
The Origin of Life - Earth Life, “Weird Life” and Astrobiology

Chapter 20.
Chapter 20.

... PCR DNA sequencing gel electrophoresis Southern blotting microarrays ...
Protein Synthesis
Protein Synthesis

... DNA triplets encode for each one of the 20 amino acids that make proteins • During transcription, a DNA triplet will produce an mRNA codon. • During translation, a codon will constitute an amino acid ...
BI0034
BI0034

Chapter 7 - HCC Learning Web
Chapter 7 - HCC Learning Web

PBS Unit 3 Key Terms
PBS Unit 3 Key Terms

... An organic monomer which serves as a building block of proteins. A triplet of nucleotide bases in transfer RNA that identifies the amino acid carried and binds to a complementary codon in messenger RNA during protein synthesis at a ribosome. A three-nucleotide sequence of DNA or mRNA that specifies ...
IV. Diagnosing Gene Disorders
IV. Diagnosing Gene Disorders

...  Results in an extra copy of chromosome in one cell, and a loss of that chromosome from another. B. Results  After fertilization, the resulting person will have an ...
notes - Southington Public Schools
notes - Southington Public Schools

... allowing visual proof that cells in a sample or organism got the new gene being studied. The Human Genome Genome = the complete set of genes for an organism. The human genome contains approximately 21,000-23,000 protein coding genes, made up of about 3 billion base pairs. (ATACGACCTG, etc., 3 billio ...
Mutations Powerpoint
Mutations Powerpoint

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Deoxyribozyme



Deoxyribozymes, also called DNA enzymes, DNAzymes, or catalytic DNA, are DNA oligonucleotides that are capable of catalyzing specific chemical reactions, similar to the action of other biological enzymes, such as proteins or ribozymes (enzymes composed of RNA).However, in contrast to the abundance of protein enzymes in biological systems and the discovery of biological ribozymes in the 1980s,there are no known naturally occurring deoxyribozymes.Deoxyribozymes should not be confused with DNA aptamers which are oligonucleotides that selectively bind a target ligand, but do not catalyze a subsequent chemical reaction.With the exception of ribozymes, nucleic acid molecules within cells primarily serve as storage of genetic information due to its ability to form complementary base pairs, which allows for high-fidelity copying and transfer of genetic information. In contrast, nucleic acid molecules are more limited in their catalytic ability, in comparison to protein enzymes, to just three types of interactions: hydrogen bonding, pi stacking, and metal-ion coordination. This is due to the limited number of functional groups of the nucleic acid monomers: while proteins are built from up to twenty different amino acids with various functional groups, nucleic acids are built from just four chemically similar nucleobases. In addition, DNA lacks the 2'-hydroxyl group found in RNA which limits the catalytic competency of deoxyribozymes even in comparison to ribozymes.In addition to the inherent inferiority of DNA catalytic activity, the apparent lack of naturally occurring deoxyribozymes may also be due to the primarily double-stranded conformation of DNA in biological systems which would limit its physical flexibility and ability to form tertiary structures, and so would drastically limit the ability of double-stranded DNA to act as a catalyst; though there are a few known instances of biological single-stranded DNA such as multicopy single-stranded DNA (msDNA), certain viral genomes, and the replication fork formed during DNA replication. Further structural differences between DNA and RNA may also play a role in the lack of biological deoxyribozymes, such as the additional methyl group of the DNA base thymidine compared to the RNA base uracil or the tendency of DNA to adopt the B-form helix while RNA tends to adopt the A-form helix. However, it has also been shown that DNA can form structures that RNA cannot, which suggests that, though there are differences in structures that each can form, neither is inherently more or less catalytic due to their possible structural motifs.
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