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5.3 DNA and genes
5.3 DNA and genes
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Biologie
Middelbare school
vwo
Leerjaar 2
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5.3 DNA and genes
Slide 1 - Slide
DNA
Slide 2 - Slide
DO YOU REMEMBER?
Slide 3 - Slide
nucleotides (base of DNA)
Slide 4 - Slide
4 different bases (nucleotides)
c
ytosine
g
uanine
a
denine
t
hymine
Slide 5 - Slide
Slide 6 - Slide
double helix (ladder)
Slide 7 - Slide
information is stored in code
AATCCGGACGAATTCCGGAAAAAATTTTTTTTTTTTTTTTTTCGCGCGAATTCATATATATCGGACGGACGAAC etc etc etc it would be a very thick book :-)
Slide 8 - Slide
GENE: section of DNA with complete code for a protein
Slide 9 - Slide
proteins
determine almost everything...
one gene = code for one protein
one or several proteins = one characteristic (hereditary trait)
Slide 10 - Slide
copying
you start with one fertilised egg with 46 chromosomes...
you end up with billions of cells with the same 46 chromosomes => all of them a copy from the original.....
things can go wrong on the way => mutations (5.5)
Slide 11 - Slide
from DNA code to proteins
Slide 12 - Slide
three bases....
every 3 basis are code for one amino acid
ACC is code for one type
AAG is code for another
there are 21 different amino acids. when you string them together they form a protein
Slide 13 - Slide
amino acids -> protein
Slide 14 - Slide
The molecule
shown in the
picture is called ...
A
DNA
B
single stranded DNA
C
an amino acid
D
a ribosome
Slide 15 - Quiz
This is a picture of ..
A
chromosome
B
gene
C
DNA
D
cell
Slide 16 - Quiz
Below are a few codes with 4 letters.
Which of these codes show a piece ofDNA?
A
ABCDBDCA
B
CAEFEAFC
C
GACTATGC
D
TACDDTAC
Slide 17 - Quiz
What do you call the part of a chromosome that carries the information for 1 heriditary trait?
A
DNA
B
a gene
C
a mother cell
D
an egg cell
Slide 18 - Quiz
Does the information for hereditary traits change when a cell is copied?
A
yes
B
no
Slide 19 - Quiz
this is a picture of ........
A
cell
B
chromosome
C
DNA
D
gene
Slide 20 - Quiz
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