- Study guides, Class notes & Summaries

DNA structure Review Practice Test. What does DNA stand for? Deoxyribonucleic acid Nucleotide A building block of DNA, consisting of a five-carbon sugar, a nitrogenous base, and a phosphate group. Deoxyribose sugar sugar used in DNA to make up the "backbone" Complementary Base to Adenine Thymine Complementary Base to Cytosine Guanine Double Helix shape of the DNA molecule Nucleotide

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3 pages

Written in 2023/2024

Grade A+

ROSEGRADES

DNA Replication Steps Final Exam. Step 1: Starts at? - CORRECT ANSWER DNA Replication begins at the Origin of Replication Step 2: Unwinds - CORRECT ANSWER Helicase cuts hydrogen bonds and separates DNA in half Step 3: Holds strands - CORRECT ANSWER Single Strand Binding Proteins attach to the halves and keep the DNA molecules separated Step 4: Two types of strands added 3' to 5' - CORRECT ANSWER The Replication Fork is forms with the Leading and Lagging strands. Step 5: RNA Pr...

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2 pages

Written in 2023/2024

Grade A+

ROSEGRADES

DNA Structure & Replication Final Exam. DNA Replication process by which DNA molecule is copied Chargaff's Law the base compostion of DNA varies between species and for each species, the percentages of A and T bases are roughly equal to the percentages of the G and C bases Double helix two twisted strands Antiparallel polynucleotide strands run in opposite directions 5' --> 3' 3' --> 5' Semiconservative Model the two strands of the parental molecule s...

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7 pages

Written in 2023/2024

Grade A+

ROSEGRADES

DNA vs. RNA Questions And Answers. I am single stranded. - CORRECT ANSWER RNA I am found only in the nucleus of eukaryote cells (exception during mitosis when nucleus is temporarily disassembled). - CORRECT ANSWER DNA I am a nucleic acid. - CORRECT ANSWER both I am arranged as a double helix or "twisted ladder. - CORRECT ANSWER DNA I have the sugar ribose. - CORRECT ANSWER RNA I have the sugar deoxyribose. - CORRECT ANSWER DNA I include the bases Guanine, Cytosine, and Ad...

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2 pages

Written in 2023/2024

Grade A+

ROSEGRADES

DNA Polymerase Study Guide Test. DNA Polymerase - CORRECT ANSWER Enzyme that assembles nucleotides into a new DNA strand DNA Polymerase I - CORRECT ANSWER DNA repair and some replication. Highest concentration DNA Polymerase II - CORRECT ANSWER DNA repair. Middle concentration DNA Polymerase - CORRECT ANSWER Have 3'-5' exonuclease; proofreading ability - keeps mutation rate below a certain level. Can only polymerize in a 5'-3' direction. Can only add nucleotides to an existing ...

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2 pages

Written in 2023/2024

Grade A+

ROSEGRADES

DNA Strawberry Lab Correctly Answered Exam Questions. Where in the cell is the DNA found? - CORRECT ANSWER The chromosomes (which are made of DNA) are in the nucleus. Most of the DNA is located here. What was the purpose of mashing up the strawberry? - CORRECT ANSWER To break down the cell wall, cellular and nuclear membranes, to break open the cells. What does the extraction buffer do? (Hint: Extraction buffer contains soap. What does soap do when you wash your hands?) - CORRECT ANSWER...

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2 pages

Written in 2023/2024

Grade A+

ROSEGRADES

DNA Replication Written Exam . DNA replication steps 1) Helicase- unwinds the parental double helix 2) DNA topoisomerase - upstream of helices alleviating torsional strain 3) Single-strand binding proteins (SSBP) stabilize unwound DNA, aided by DNA gyrase (topoisomerase). 4) Primase synthesizes a short RNA primer for DNA polymerase to bind to in the 5' to 3' direction to start replication on each strand. 5) DNA polymerase synthesizes the leading strand in 5' to 3' direction...

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16 pages

Written in 2023/2024

Grade A+

ROSEGRADES

Consequences of DNA Technology Final Exam Questions. There are economic concerns surrounding the products that have been genetically engineered for particular traits, including pharmaceuticals, crops, and enzymes that are used in industry and manufacturing processes. Which is least likely to be an economic concern that affects society? - CORRECT ANSWER birth defects Which is a synonym for genetic engineering? - CORRECT ANSWER x DNA fingerprinting Which is a negative consequence of usi...

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2 pages

Written in 2023/2024

Grade A+

ROSEGRADES

DNA Mutations Exam Questions Correctly Answered. Which best describes somatic mutations? - CORRECT ANSWER They can cause different kinds of cancer. Which is a point mutation? - CORRECT ANSWER missense A base sequence reads AAGTCG before a mutation. Which could be the base after a frameshift mutation occurs? - CORRECT ANSWER AGTCG The DNA sequence reads ACGTTCATT before a mutation occurs. After the mutation, the DNA sequence reads ATCGTTCATT. Which type of mutation occurred? - CORRE...

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1 pages

Written in 2023/2024

Grade A+

ROSEGRADES

Genetics: DNA Study Guide Test. Traits - CORRECT ANSWER Characteristics inherited from genes and determined by proteins; like your eye color, hair color, etc. Inherited - CORRECT ANSWER The process of getting certain traits from your parents because of their genes James Watson, Francis Crick - CORRECT ANSWER The discoverers of the structure of DNA; created the first 3D model of DNA Rosalind Franklin - CORRECT ANSWER Used X-rays to take pictures of DNA DNA - CORRECT ANSWER The co...

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2 pages

Written in 2023/2024

Grade A+

ROSEGRADES

APPLICATIONS OF DNA TECHNOLOGY FINAL EXAM WITH COMPLETE SOLUTIONS. A patient is found to be suffering from a bacterial infection. Which genetically engineered medicine is most likely to be used to help this patient? insulin flu shot penicillin human growth hormone - CORRECT ANSWER penicillin What is the purpose of using genetic engineering to create edible vaccines? to create vaccines that are capable of lasting years in the body to prevent future infections to diminish negativ...

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3 pages

Written in 2023/2024

Grade A+

ROSEGRADES

DNA FINAL EXAM QUESTIONS CORRECTLY ANSWERED. Nucleus - CORRECT ANSWER Where do you find the DNA inside of a eukaryotic cell? DNA - CORRECT ANSWER the genetic information of an organism Nucleotide - CORRECT ANSWER A single unit of DNA made up of a sugar, phosphate, and nitrogen base. Double Helix - CORRECT ANSWER What is the shape of DNA? (twisted ladder) A, T, C, G - CORRECT ANSWER What are the four nitrogen bases of DNA? Thymine (T) - CORRECT ANSWER Adenine (A) pairs with __...

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4 pages

Written in 2023/2024

Grade A+

ROSEGRADES

DNA /RNA EXAM QUESTIONS AND ANSWERS. DNA - CORRECT ANSWER deoxyribonucleic acid,an organisms genetic information Deoxyribose - CORRECT ANSWER the 5 carbon sugar that makes up the back bone of the dna molecule Phosphate group - CORRECT ANSWER the 3 phosphates that make up the back bone of the dna molecule Nucleotide - CORRECT ANSWER made up of 1 deoxyribose, 1 phosphate group and one of 4 nitrogen bases (a,t,c,g) Adenine - CORRECT ANSWER a dna component, a chemical (purine) that ...

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3 pages

Written in 2023/2024

Grade A+

ROSEGRADES

DNA Structure & DNA Replication Study Guide Exam. Double Helix The name for the shape of DNA... Nucleotide Units that make up DNA; composed of a sugar, phosphate and nitrogenous base Adenine (A) Always pairs with thymine (T) Guanine (G) Always pairs with cytosine (C) DNA backbone; sides of the DNA molecule is composed of these... Sugar and phosphate Deoxyribose The name of the sugar found in the backbone of the DNA molecule...

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4 pages

Written in 2023/2024

Grade A+

ROSEGRADES

DNA STUDY GUIDE EXAM QUESTIONS CORRECTLY ANSWERED. a double-stranded, helical nucleic acid molecule capable of replicating and determining the inherited traits of organisms and viruses. Dna a building block of DNA or RNA, consisting of a sugar, a nitrogenous base and a phosphate group. Nucleotide a pair of parallel helices intertwined about a common axis Double helix a type of weak chemical bond formed between the nitrogenous bases on opposite strands of DNA. Hydrogen bon...

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4 pages

Written in 2023/2024

Grade A+

ROSEGRADES