Unit 1: Structure Of DNA

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Cfe Higher Cfe Higher | Biology (Unit 1: DNA & The Genome) Flashcards on Unit 1: Structure Of DNA , created by Ellie Potellie on 12/11/2018.
Ellie Potellie
Flashcards by Ellie Potellie, updated more than 1 year ago
Ellie Potellie
Created by Ellie Potellie over 5 years ago
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Question Answer
What Does DNA Stand For? Deoxyribonucleic acid
What Is The Structure Of DNA? A double strand helix that is anti-parallal
What Are The Bases Used In DNA? Adenine, Guanine, Thymine and Cytosine
What Are The Bases Held Together By? Hyrdrogen Bonds
How Are Nucleotides Held Together? Nucleotides are held together by strong covalent bonds
How Many Types Of Cells Are There? Three
What Are They're Names? •Prokaryotic • Eukaryotic •Archea
How Is DNA Arranged In A Prokaryotic Cell? DNA is arranged in circular chromosomes with associated proteins
How Is DNA Arranged In A Eukaryotic Cell? DNA is packaged in linear chromosomes with associated proteins
How Are Fungal Cells Arranged? They have circular plasmids
How Are The Chloroplast & Mitochondrion Arranged? They have circular chromosomes and DNA Inside them
Describe A Plasmid A small circular, double-stranded DNA molecule found in bacteria
What Is Semi-conservative Replication? Semi-conservative Replication Is when an original strand and a new strand form new DNA ie Daughter Strand
What Is Needed For DNA Replication? • ATP [Energy] • Enzymes • DNA Nucleotides • DNA strands as template primers
What Is DNA Polymerase? DNA Polymerase is an enzyme
What Are The Proteins DNA Are Associated With Called? DNA Is associated proteins called histones in the nucleus
What Does It Do? Adds nucleotides to the newly synthesise strands
What Is The Structure Of A Nucleotide? The structure of a nucleotide consists of a sugar (deoxyribose), one of four bases cytosine (C), thymine (T), adenine (A), guanine (G), and a phosphate.
How Many Carbons Are In A Sugar In A Nucleotide? Five
What Is The Five-Carbon Sugar Called? Ribose
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