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©2015 Science Island 1 What does DNA stand for? ©2015 Science Island 1 What does DNA stand for?

©2015 Science Island 1 What does DNA stand for? - PowerPoint Presentation

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©2015 Science Island 1 What does DNA stand for? - PPT Presentation

2015 Science Island 2 What is the function of DNA 2015 Science Island 3 DNA is a polymer made of monomers 2015 Science Island 5 List the 4 nitrogen bases found in DNA and discuss how they pair up ID: 738209

science 2015 dna island 2015 science island dna mrna replication amino called bases transcription chains transcript acid codon base

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Presentation Transcript

Slide1
Slide2

©2015 Science Island

1

What does DNA stand for?Slide3

©2015 Science Island

2

What is the function of DNA?Slide4

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3

DNA is a polymer made of ___ monomers.Slide5
Slide6

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5

List the 4 nitrogen bases found in DNA and discuss how they pair up.Slide7

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6

DNA nucleotides are joined by covalent bonds between the ___ of one nucleotide and the ___ ___ of the next.Slide8

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7

Nitrogen bases in DNA are held together by ___ bonds.Slide9

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8

The

s

hape of the DNA molecule is like a twisted ladder and is called a ___ ___.Slide10

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9

The double helix shape of DNA was first described in 1953 by

___ & ___. Slide11

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10

The process of copying the DNA molecule is called ___ ___.Slide12

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11

Briefly explain why DNA replication is necessary.Slide13

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During DNA replication, the molecule unzips at ___ of ___ forming replication bubbles.Slide14

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The result of DNA replication is two new ___ molecules, each with one strand from the original parent and one new strand.Slide15

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14

What bases will base pair to this section of DNA during replication

?

A T T C A G C A T C C G Slide16

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15

List the 2 main steps or stages in protein synthesis.Slide17

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16

Define gene.Slide18

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20 different ___ ___ link together to form chains. A protein is composed of one or more of these ___ chains which are twisted and folded into a particular shape.Slide19

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18

Your DNA contains the instructions for making your ___ and these determine your ___.

Genotype

Phenotype

PROTEINSSlide20
Slide21

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20

Write the RNA bases that will base pair to this section of DNA during transcription:

A T T C A G C A T C C G Slide22

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21

Name the 3 types of RNA described below:

Transcribes the DNA code

Primary component of the ribosome

Carries an amino acid into position during translationSlide23

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22

Fill in the missing step in transcription:

DNA strands separate

One side serves as a template

?

mRNA transcript is spliced

mRNA exits nucleusSlide24

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23

Where does transcription take place?

What is formed from this process? Slide25

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24

Eukaryotic genes contain non-coding regions called ___ and coding regions called ___.Slide26

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25

RNA ___ involves removing the introns and joining the exons together to form the mRNA transcript.Slide27

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Where does the mRNA transcript go when it exits the nucleus?Slide28

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27

Fill in the missing step in transcription

:

mRNA attaches to a ribosome in the cytoplasm

?

Amino acids bond to form polypeptide chainsSlide29

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28

Briefly discuss the structure and function of ribosomes.Slide30

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29

A 3-base “word” on mRNA that codes for one amino acid is a ___.

AUGSlide31

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What is the purpose of a codon chart like this?Slide32
Slide33

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Use this portion of the codon chart to determine the amino acid coded for by the mRNA codon UCA.Slide34

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33

Any change in the DNA sequence is a ___.Slide35
Slide36

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35

List the two basic types of point mutations and explain why one type is usually worse than the other.Slide37

©2015 Science Island