Top-Rated Free Essay
Preview

Genetics

Satisfactory Essays
671 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Genetics
REVIEW EXAM 1
CH 1
DNA – basic features, base composition
RNA basic features, base composition, what are all the different types of RNA?
Nucleotide - what makes up one? What is it’s general structure?
Mendel- basic concept of heredity, punett squares, genotype vs. phenotype, homozygous, heterozygous, what is an allele, dominant allele recessive allele
Two general classes of genetics and what makes up each one
Relationship of a gene to locus to allele to chromosome
What organisms do we do research on? Why? Eukaryotes? Prokaryotes?
Basically all definitions in bold print

CH 2
Timeline of the search of genetic material- all of the scientists involved, their experiments, the conclusion of their experiments
Composition and structure of purines and pyrimidines (sugar, bases, phosphate groups, role of phosphodiester bonds, bonds between bases)
Experiments and scientists responsible for the discovery of the structure of DNA (Chargraff, Franlin, Wilkins, Watson Crick)
Features of the DNA double helix
Compacting DNA in chromosomes- role of topoisomerases, looping,supercoiling
Role of histones and non-histones, chromatin, euchromatin, heterochromatin, what is a nucleosome? histone core?
C value & C value paradox
Centromere and telomere, what are they- how are they similar? How are they different? What is their importance?
CEN sequences, importance of A-T rich regions, what is their purpose?
All bold faced definitions

CH 3
3 models for DNA replication, the experiment that proved semiconservative was right, the scientists who performed it and how they did it?
All elements and machinery necessary for replication: origin, replicator, template strands, helicase, DNA gyrase, DNA primase, primosome, RNA primers, SSB proteins, Okazaki fragments, leading and lagging strands, DNA ligase, continuous, discontinuous, replication fork, replisome. Pol I, pol III, free dNTPs
How do we replicate the ends of chromosomes? Why is this important? What is telomerase? Why is it unique?
Cell cycle in relation to DNA replication and histone transcription and translation
ALL BOLD WORDS
Replication in eukaryotes vs prokaryotes

CH 4
Beadle and Tatum and their hypothesis, experimental design, conclusion
Prototroph vs auxotroph, nutritional mutant, “rescue experiment”
Using mutants to predict the biochemical pathway
Enzyme deficiencies in humans (PKU, albinism, Lesh-Nyhan syndrome, Tay- Sachs) what genes are mutated? What is the phenotype?
How do genes control protein structure?
SCA, SCT, Beet and Neel and Pauling’s role in determining the cause of SCA and SCT, the role amino acids have in determining the effects of a mutation
Genetic counseling
Pedigree analysis, carrier detection, amniocentesis and chorionic villus sampling
All bold faced words and definitions

CH 5
What is mRNA, tRNA, snRNA, and rRNA and what is their role?
What is transcription? transcription in eukaryotes vs. prokaryotes
Function of a promoter and a pribnow box, what is the sigma factor? What is RNaApolymerase?
How does RNA elongation and termination occur in prokaryotes? Rho-dependant, rho-independent, what is the function of the hairpin structure?
Transcription in eukaryotes: RNA pol 1-3, pre-mRNA, TATA box, promoter proximal elements, activators and enhancers,GTFs
5’UTR 3’UTR
Synthesizing pre-mRNA in eukarotes vs mRNA in prokaryotes, differences and similarities
How do we produce mature mRNa in eukaryotes? Introns, exons, capping, polyA tail, polA polymerase
Splicing- how are introns removed? 2 main maehods 1- spliceosomes, snRNPs, branch-point sequence or 2- self-splicing lariat molecule
RNA editing rRNA, understanding the ribosome structure as seperates and as a whole main difference in transcribing rRNA vs mRNA, what are spacers?
RNA polIII and its role in transcribing tRNA, role of tRNA and its form, anticodon and codon
Bold faced words and definitions

CH 6
Understanding a protein, polypeptide and amino acids, types of AA, levels of protein structure
What is the genetic code? How is it read?
Frameshift mutation-what does it cause
Open reading frame?
Characteristics of the genetic code
Why is the code degenerate? What is the wobble hypothesis?
How do you charge a tRNA?
What is involved in activating translation in prokaryotes vs eukaryotes?
Shine-Dalgarno sequence, fmet, met
P site, E site, A site, peptide bond, peptidyl transferase
Terminating translation
Polysome
Bold words and definitions

You May Also Find These Documents Helpful

  • Good Essays

    | Proved that DNA replicates in a semiconservative fashion, confirming Watson and Crick's hypothesis. Cultured bacteria in a medium containing heavy nitrogen (15N) and then a medium containing light…

    • 1676 Words
    • 7 Pages
    Good Essays
  • Satisfactory Essays

    Rosalind Franklin was a chemist who made the first DNA structure in 1953. A DNA model is a model of someone's DNA. DNA stands for Deoxyribonucleic Acid.A DNA strand is used to figure out a person’s physical and mental information. There are two forms of DNA an “A” form and a “B” form. (Franklin 2015) Franklin found this out by putting a DNA fiber under a x-ray machine Franklin refined herself. Franklin and Maurice Wilkins used Franklin’s x-ray photo called photograph 51 and Wilkins published first and so he got a nobel peace prize in 1962. (Franklin 2015) Franklin was then given some of the credit and was written about in the article of the newspaper.…

    • 278 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Microbiology Task 1

    • 406 Words
    • 2 Pages

    The double helix is unwound by helicase & each strand then acts as a template for the next strands Primase creates the DNA primer DNA polymerase III is the main copying enzyme…

    • 406 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    Franklin, s. (2003, April 24). BBC News. Retrieved from My aunt, the DNA pioneer: http://www.physics.org/explorelink.asp?id=3131&q=DNA&currentpage=1&age=0&knowledge=0&item=3…

    • 3692 Words
    • 15 Pages
    Powerful Essays
  • Better Essays

    biochemistry Task 1

    • 793 Words
    • 3 Pages

    DNA replication is a process by which two DNA molecules are formed from one DNA molecule. In simple words, it’s like ‘duplication’ of a DNA molecule. The DNA molecule is copied whereby each of the new molecules contains a single strand of the original ‘parental’ DNA and one of the newly formed DNA strand (Weaver, 2005). The process occurs in a series that contains four steps; Initiation, Elongation, Termination and Proofreading/Correction.…

    • 793 Words
    • 3 Pages
    Better Essays
  • Satisfactory Essays

    * O.T. Avery – important because their research on DNA/protein after Griffiths experiment on the transforming factor, was decisive enough for Watson to believe that DNA was the genetic material (not protein as was believed)…

    • 838 Words
    • 4 Pages
    Satisfactory Essays
  • Satisfactory Essays

    | Draw and describe the structure of DNA to include: Sugar, Phosphate, Bases and Hydrogen Bonds.…

    • 341 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Biology

    • 377 Words
    • 2 Pages

    2. Why was the model of ONE chromosome composed of TWO identical strands of beads at the beginning of the experiment? To represent the dna sequence.…

    • 377 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    What does a geneticist do

    • 560 Words
    • 3 Pages

    Scientists who study genetics study genes and heredity: how certain characteristics are inherited by offspring because their parents had these characteristics. Do you have the same eye color as your mother or father? Do twins "run" in your family? These characteristics, or traits, are inherited. They are passed from your parents to you by genes. Genes (1) ____contain________ DNA that occupies a (2) _________specific_________ place on a chromosome. DNA (3) ___________Determines____________ a specific trait in the (4) ____________organism___________ . Even the fact that you were born a boy or a girl was determined by genes. DNA is found in the (5) __________nucleus_____________ of each cell. When a baby is made, one cell from the father joins with one cell from the mother. This tiny cell (6) __________contains_____________ all the information stored in DNA to make a new person - you! If you are a boy, you were given DNA from your father containing a "y" chromosome. If you are a girl, you were given DNA from your father (7) _________containing______________ an "x" chromosome. Your mother could only give you an x chromosome. Girls have two x chromosomes, and boys have an x and a y chromosome. The information in the DNA you inherited from your parents also (8) __________determine____________ what color of eyes you would have, the color of your hair, the type of ear lobes you have, and whether or not you can roll your tongue.…

    • 560 Words
    • 3 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Genetics

    • 544 Words
    • 3 Pages

    d. What is the amino acid sequence of the protein that would be synthesized after transcription and translation of the following piece of template strand DNA?…

    • 544 Words
    • 3 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Iodine Paper

    • 382 Words
    • 2 Pages

    2. The discovery of genetic material in DNA occurred in 1865. This allowed us to determine different traits in mammals. As well as how we can determine different traits, and the percent chance of obtaining these traits.…

    • 382 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    genetics notes

    • 398 Words
    • 2 Pages

    Study of how the inheritance of traits encoded by genes on sex chromosomes (sex-linked traits)…

    • 398 Words
    • 2 Pages
    Good Essays
  • Good Essays

    The Double Helix

    • 830 Words
    • 4 Pages

    James Watson accounts all the events of his career that occurred during 1950 to 1953, which led to the discovery of structure of the DNA in his famous piece of science writing called “The Double Helix”. In his book, James Watson describes how he and Francis Crick discovered the structure of the deoxyribose nucleic acid (DNA) that leads to the major themes of this book, which is nature of scientific discovery. Watson describes his and Crick’s search for a simple explanation of DNA, which is made difficult by the poor communications amongst the scientists.…

    • 830 Words
    • 4 Pages
    Good Essays
  • Good Essays

    telomerase

    • 443 Words
    • 2 Pages

    According to a research done by a team of researchers at the University of Texas, An evaluation of cell lines from 18 different human tissues revealed the presence of telomerase in 98 of the 100 immortal cell lines, telomerase was not found in any of the 22 mortal cell lines.Telomeres is a repeated DNA sequence(TTAGGG) found at the ends of linear chromosomes that protect the ends of the chromosome from degradation, or telomere can be defined as DNA sequences found at the ends of eukaryotic chromosomes which maintain the fidelity of genetic information during replication. At birth as determined by terminal restriction fragment analysis, telomeres consist of about 15,000 base pairs of repeated TTAGGG DNA sequences, which become shorter with each cell division owing to the end replication problem. Every time a cell divides it loses 25-200 DNA base pairs off the chromosomes. It is possible that mortality stage 1 may be induced by the activation of genes located in the immediately subtelomeric region of the chromosomes.The second is the mortality stage 2 which represent the physiological result of critically short telomeres when cells are no longer able to protect the ends of the chromosomes, so that the end degradation and end to end fusion occurs and causes genomic instability and cell death). While researching on a topic like this, couple of important questions came to mind, so I made effort to research and address some of these questions which might be considered important. One of such questions is why do telomeres shorten? the mechanism of DNA replication is different in linear chromosomes is different for each of the two strands, known as leading and lagging strands. the lagging strand is made as series of discrete fragment, each one requiring a new RNA primer to initiate synthesis. the DNA between the last RNA priming event and end of the chromosome cannot be filled in.{this process is known as the end replication problem} since a strand cannot copy its end,…

    • 443 Words
    • 2 Pages
    Good Essays
  • Good Essays

    AntiMicrobial

    • 839 Words
    • 4 Pages

    1983 - Kary B. Mullis develops the polymerase chain reaction technique for rapid DNA synthesis.…

    • 839 Words
    • 4 Pages
    Good Essays

Related Topics