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Genetics lesson 2 DNA
Repetition from last time
1 / 21
volgende
Slide 1:
Tekstslide
Biologie
Middelbare school
vwo
Leerjaar 3
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21 slides
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interactieve quizzen
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tekstslides
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Repetition from last time
Slide 1 - Tekstslide
How does DNA act as a blueprint for life?
A
By making proteins
B
By making carbohydrates
C
By making new cells
D
By making amino acids
Slide 2 - Quizvraag
Each human being has 46 chromosomes. How many did you get from your mother?
A
46
B
23
C
22
D
45
Slide 3 - Quizvraag
genotype
phenotype
XY chromosomes
cannot change!
you inherit this
can sometimes change during your life
you do not inherit this
a scar
Is not always visible
Slide 4 - Sleepvraag
Identical twins do have the same genotype but not necessarily the same phenotype
A
true
B
false
Slide 5 - Quizvraag
Put in the correct order
A
cell - chromosome - DNA - gene
B
gene - chromosome - DNA - cell
C
gene - chromosome -cell - DNA
D
gene - DNA - chromosome - cell
Slide 6 - Quizvraag
Zet de juiste omschrijving bij het juiste begrip.
chromosome
gene
allele
thread of DNA with hereditary information
part of a chromosome with the information of 1 characteristic
gene variant, the information in a gene
Slide 7 - Sleepvraag
What is the difference between genotype and phenotype?
A
The phenotype is all of the DNA in your cells. The genotype are all of your visible traits
B
The genotype are all the different cells. The fenotype are alle the different genes.
C
The phenotype are all the different cells. The genotype are all the different genes.
D
The genotype is the total amount of DNA in your cells. The fenotype are all the visible traits.
Slide 8 - Quizvraag
Genetics lesson 2 DNA
Slide 9 - Tekstslide
Learning objectives
- You can describe what genes and alleles are.
- You can describe what a mutation is.
- You can describe the structure of DNA
Slide 10 - Tekstslide
Chromosomes
= 1 long DNA molecule rolled up in between proteins
46 chromosomes in every nucleus
Slide 11 - Tekstslide
Karyotype
46 chromosomes
23 pairs of chromosomes
1 pair = 2 similar chromosomes of the same length, shape and with the same information
44 normal chromosomes
2 sex chromosomes
Slide 12 - Tekstslide
Gene
A piece of DNA
that contains the code for a one
characteristic
is what we call a gene.
gene = een deel van een chromosoom dat de informatie bevat van één of meer erfelijke eigenschappen)
Slide 13 - Tekstslide
Slide 14 - Tekstslide
A piece of DNA showing the base pairs
Slide 15 - Tekstslide
Slide 16 - Tekstslide
DNA has 4 building blocks
Nucleotides:
ATCG (nitrogenous base)
Phosfategroup
Desoxyribose (sugargroep)
Slide 17 - Tekstslide
How many chromosome pairs do most people have in their cells?
A
22
B
23
C
44
D
46
Slide 18 - Quizvraag
How much hereditary material does a sex cell have compared to a normal body cell?
A
Same
B
1/2
C
1/4
D
twice the amount
Slide 19 - Quizvraag
A piece of DNA has the following sequence:
TGCAAA
What is the sequence of the opposite strad?
A
ACGTTT
B
TTTGCA
C
TGCAAA
D
AAACGT
Slide 20 - Quizvraag
Make excercises from chapter 5.2
Slide 21 - Tekstslide
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