Biology unit 6 (DNA)

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Created by: Kb1300
Created on: 10-09-19 19:08

what is a chromosome

a long molecule of DNA

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describe the structure of DNA

polymer made up of two strands coiled together in the shape of a double helix

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what is a gene

a small section of DNA that codes for a particular sequence of amino acids to make a protein

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what is a genome

the enitre genetic material of an organism

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why is it important for scientists to understand the human genome

they can search for genes linked to different types of disease , can help us to understand and treat inherited disorders better , they are used in tracing human migration patterns from the past

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what is the structure of a nucleotide

one sugar molecule , one phosphate molecule and one base

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how many base does DNA contain and what are they

4 - A , T , C and G

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what are the complimentary base pairings

A-T and G-C

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what do the order of the bases on the DNA control

the order of amino acids in a protein

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how are amino acids coded for

by a sequence of 3 bases

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where are proteins made

on a ribosome in the cytoplasm of a cell

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why cant DNA leave the nucleus

it is too big

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what is mRNA

messenger RNA

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what is the function of mRNA

it coppies code from the DNA and carries the code to the ribosomes

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how are amino acids brought to the ribosomes

by carrier molecules

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what happens to the protein when it is completed

it folds up to form a unique shape

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Other cards in this set

Card 2

Front

describe the structure of DNA

Back

polymer made up of two strands coiled together in the shape of a double helix

Card 3

Front

what is a gene

Back

Card 4

Front

what is a genome

Back

Card 5

Front

why is it important for scientists to understand the human genome

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Biology unit 6 (DNA)