IB Biology -nucleic acids

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what are nucleic acids responsible for?

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1

what are nucleic acids responsible for?

storing genetic information

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2

nucleic acids are made up of?

monomers

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3

what are monomers

small molecules that bond together to create complex structures

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4

draw a nucleotide

knowt flashcard image
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5

what do all bases contain

nitrogen

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6

5 carbon sugars=

deoxyribose

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7

what are the base and phosphate linked by ……. to pentose sugar

covalent bonds

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8

what are the base’s linked by

hydrogen bonds

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9

phosphate and pentose sugar link to each nucleotide forming

strong sugar-phosphate backbone

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10

is RNA single stranded or double stranded

single stranded

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11

what are the bases of DNA

adenine,cytosine,guanine,thymine

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12

What are the bases of RNA

adenine,cytosine,guanine,uracil

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13

what is teh number of sequences allowed

they are infinite

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14

what shape does DNA have

double helix

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15

A=T

C=G

complementary base pairing

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16

when they run in opposite directions this is called

antiparallel

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17

each end ends with something different want do they end with

phosphate group

deoxyribose

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18

what happens when 2 strands go in the same direction

bases cant form hydrogen bonds with eachother

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19

what are the differences between DNA and RNA

DNA: double stranded, A,C,T,G. the sugar= deoxyribose

RNA=single stranded ,A,C,U,G the sugar-ribose

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20

what is the difference between deoxyribose and ribose sugar molecule

the OH and H on 2

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21

what enzyme is used for transcription

RNA polymerase

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22

Transcription

DNA is copied into mRNA

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23

translation

forming polypeptide chain from mRNA

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24

what is mRNA?

a copy of a single gene

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25

when does translation happened

when strand leaves nucleus

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