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Nucleic Acids: An Introduction
Nucleic Acids: An Introduction

... • One strand of the DNA double helix is used as a template by the RNA polymerase to synthesize a messenger RNA (mRNA). • mRNA migrates from the nucleus to the cytoplasm. • mRNA goes through different types of maturation including one called splicing when the non-coding sequences are eliminated. • Th ...
DNA and Protein Synthesis Test for iRESPOND
DNA and Protein Synthesis Test for iRESPOND

... 23. Suppose that you are given a protein containing the following sequence of amino acids: tyrosine, proline, aspartic acid, isoleucine, and cystein. What is the DNA sequence that codes for this amino acid sequence? a. GCAAACTCGCGCGTA ...
Transcription
Transcription

... DNA holds the instructions to make proteins, but can NOT leave the nucleus. ...
Molecular Biology 2.6- Structure of DNA and RNA
Molecular Biology 2.6- Structure of DNA and RNA

... – Crick and Watson used model making to discover the structure of DNA. (1.10) ...
Central Dogma Activity KEY DNA Replication Analysis Questions
Central Dogma Activity KEY DNA Replication Analysis Questions

... 1. What is the difference between transcription and translation? Transcription uses DNA to create a complementary RNA strand within the nucleus, translation occurs outside the nucleus (on a ribosome) and uses the mRNA message to code for amino acids to make up a protein 2. What is the purpose of the ...
Biology 12-3 RNA and Protein Synthesis
Biology 12-3 RNA and Protein Synthesis

...  ______________________________—when RNA molecules are produced by copying part of the nucleotide sequence of DNA into a complementary sequence in RNA  Transcription requires the ________________ ________ _____________________—binds to DNA and separates the DNA strands. Then uses one strand of DNA ...
a. DNA power point
a. DNA power point

... Four bases hang off the backbone ...
14.1 Structure of Ribonucleic Acid (RNA)
14.1 Structure of Ribonucleic Acid (RNA)

... • It transferred the DNA code from the nucleus to the cytoplasm. • Hence, we call it messenger RNA (or mRNA). • mRNA is small enough to leave through the nuclear pores. ...
Created with Sketch. Student activity
Created with Sketch. Student activity

... 1. Decide in your group which lollies will be the bases (remember there are four sorts of these), the phosphate groups and the sugar. 2. Use the toothpicks and florist wire as bonds to hold parts together, just like in the real DNA molecule. A DNA molecule has two strands – how will you join the str ...
Lecture 3
Lecture 3

... • A chromosome is essentially a long strand of DNA wound around proteins; e.g. histones, to form condensed structure called chromatin. • However it order for the DNA to carry out its function is must be unwound from the proteins: chromatin to a long strand of DNA • This DNA is shaped in the form of, ...
Replication Transcription Translation
Replication Transcription Translation

... the protein is complete ...
DNA History and Replication
DNA History and Replication

... • DNA composition: “Chargaff’s rules” • varies from species to species • all 4 bases not in equal quantity • bases present in characteristic ratio • humans: A = 30.9% T = 29.4% G = 19.9% C = 19.8% That’s interesting! What do you notice? ...
Name: _________Date: : _____ Assignment #_____ Chapter 12
Name: _________Date: : _____ Assignment #_____ Chapter 12

... 8. What amino acid will be coded for by each of the following mRNA codons: a. UCA ____________________ b. CAC _____________________ c. AUU _______________ 9. What are the possible codons for the following amino acids: a. Proline: ______________________________ b. Aspartic Acid: _____________________ ...
Unit 6 review guide answers
Unit 6 review guide answers

... 13. Uracil will pair with what other base on DNA? Uracil = Adenine 14. Is RNA double or single stranded? Single stranded 15. Which type of RNA copies DNA’s instructions in the nucleus? mRNA 16. What does tRNA transport? Amino acids 17. In what part of a cell are proteins made? Ribosomes 18. What is ...
Lab 8H - Constructing A Model of DNA Replication PDF
Lab 8H - Constructing A Model of DNA Replication PDF

... DNA is a large molecule made out of two long, parallel strands of nucleotides twisted around each other to form a double helix. Each nucleotide is composed of a sugar, deoxyribose, bonded to a phosphate and nitrogen base. There are four nitrogen bases, adenine, guanine, cytosine, and thymine. The or ...
Transcription Notes
Transcription Notes

... ________________________________________ RNA: mRNA Copy of information in DNA that is brought to the ribosome and translated into protein by tRNA & rRNA. _________________________________________ RNA: rRNA Most of the RNA in cells is associated with structures known as ribosomes, the protein factori ...
DNA and RNA - Effingham County Schools
DNA and RNA - Effingham County Schools

... Bonded down one side Adenine and thymine Make a lovely pair Cytosine without guanine Would feel very bare ...
Name
Name

... 13. When one DNA molecule is copied to make two DNA molecules, the new DNA contains __50%___________ of the parent DNA. 14.The "one gene-one polypeptide" theory states _the function of an individual gene is to dictate the production of a specific polypeptide_______________ 15. What is the sequence t ...
DNA PowerPoint Slides
DNA PowerPoint Slides

... Note: DNA is only located in chromosomes for part of life cycle of a cell, in particular, just before cell division. During the “interphase,” DNA is more distributed around the nucleus. ...
CH8 Study Guide
CH8 Study Guide

... 6. What part of a DNA is similar to the “rungs” or steps on a ladder? 7. What are the four types of bases found in DNA? a. Which two are purines? b. Which two are pyrimidines? 8. What is the structural difference between purines and pyrimidines? 9. What type of bond is found in between base pairs to ...
DNA
DNA

... Importance of Base Sequences • Sequence = order of bases • Sequence of bases determines the proteins made by the cell • We can also use sequence to determine: – How closely 2 organisms are related – If 2 people are related (paternity) – If crime scene DNA matches suspect’s DNA ...
Chapter 14
Chapter 14

... in 35S to label protein coat or 32P to label DNA ...
Nucleic Acids
Nucleic Acids

... themselves into 3-dimensional structures to form functional proteins 1º - a straight chain of amino acids ...
DNA Study Guide
DNA Study Guide

... complementary anticodon on the tRNA where the amino acid is attached ...
DNA - TeacherWeb
DNA - TeacherWeb

... Example: _______________ _______________ occurs when a ______________ forms with an extra chromosome #_____. The zygote has ____ of these chromosomes. This occurs when the ___________________ do not separate during ______________. ...
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Helicase



Helicases are a class of enzymes vital to all living organisms. Their main function is to unpackage an organism's genes. They are motor proteins that move directionally along a nucleic acid phosphodiester backbone, separating two annealed nucleic acid strands (i.e., DNA, RNA, or RNA-DNA hybrid) using energy derived from ATP hydrolysis. There are many helicases resulting from the great variety of processes in which strand separation must be catalyzed. Approximately 1% of eukaryotic genes code for helicases. The human genome codes for 95 non-redundant helicases: 64 RNA helicases and 31 DNA helicases. Many cellular processes, such as DNA replication, transcription, translation, recombination, DNA repair, and ribosome biogenesis involve the separation of nucleic acid strands that necessitates the use of helicases.
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