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Chapter 5 it runs in the familiy
Chapter 5: it runs in the family
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Diapositive
Biologie
Middelbare school
vwo
Leerjaar 2
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Chapter 5: it runs in the family
Slide 1 - Diapositive
Wat is genotype or fenotype? move traits to genotype or fenotype.
Genotype
Fenotype
a small nose
straight hair from birth
Piercings
painted dark hair
a scar
Wibi can play the piano very well
calluses on your hands
blue eyes
Slide 2 - Question de remorquage
genotype
fenotype
Slide 3 - Diapositive
Karyograms:
A
left male right female
B
left female right female
C
left male right male
D
left female right male
Slide 4 - Quiz
karyotype
- picture of all your 46 chromosomes
- 23 homologous pairs (1 from dad and 1 from mum)
- 22 pairs of autosomal chromosomes
- 1 pair of sex chromosomes XX or XY
Slide 5 - Diapositive
Slide 6 - Diapositive
What determines the sex of the baby?
A
Male
B
Sperm cell
C
Female
D
Egg cell
Slide 7 - Quiz
Slide 8 - Diapositive
5.3 DNA and genes
Slide 9 - Diapositive
DNA
Slide 10 - Diapositive
nucleotides (base of DNA)
Slide 11 - Diapositive
4 different bases (nucleotides)
c
ytosine
g
uanine
a
denine
t
hymine
Slide 12 - Diapositive
Slide 13 - Diapositive
double helix (ladder)
Slide 14 - Diapositive
information is stored in code
AATCCGGACGAATTCCGGAAAAAATTTTTTTTTTTTTTTTTTCGCGCGAATTCATATATATCGGACGGACGAAC etc etc etc it would be a very thick book :-)
Slide 15 - Diapositive
GENE: section of DNA with complete code for a protein
Slide 16 - Diapositive
proteins
Lots of functions
E.g. enzymes, hormones, antibodies, cell structure
gene = code for 1 protein
Genes determine your characteristics
Slide 17 - Diapositive
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 18 - Diapositive
from DNA code to proteins
3 bases = 1 amino acid
ACC is code for one type
AAG is code for another
21 different amino acids.
string of amino acids = protein
Slide 19 - Diapositive
amino acids -> protein
Slide 20 - Diapositive
The molecule
shown in the
picture is called ...
A
DNA
B
single stranded DNA
C
an amino acid
D
a ribosome
Slide 21 - Quiz
This is a picture of ..
A
chromosome
B
gene
C
DNA
D
cell
Slide 22 - 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 23 - 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 24 - Quiz
Does the information for hereditary traits change when a cell is copied?
A
yes
B
no
Slide 25 - Quiz
this is a picture of ........
A
cell
B
chromosome
C
DNA
D
gene
Slide 26 - Quiz
Is this the karyotype of a male or female?
A
Male
B
Female
C
You cannot see that
Slide 27 - Quiz
Do:
Read paragraph 5.3
make 5.3 exercises 9-14
Slide 28 - Diapositive
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