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DNA and Inheritance V3
1 / 47
volgende
Slide 1:
Video
Biologie
Middelbare school
vwo
Leerjaar 3
In deze les zitten
47 slides
, met
interactieve quizzen
,
tekstslides
en
4 videos
.
Lesduur is:
40 min
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Slide 1 - Video
What do you share as a class?
Slide 2 - Woordweb
After today you are able to
Explain what DNA is
Name how mutations change a DNA sequence
Understand how people can change DNA
Concepts:
DNA, nucleotides, DNA sequence, mutation, inherit, gene modification, gene therapy
Slide 3 - Tekstslide
DNA
DNA = deoxyribonucleic acid
Genetic code of all living organism
Code is made from 4 letters:
Adenine, Thymine, Cytosine, Guanine
Slide 4 - Tekstslide
DNA sequence
The order of the DNA (ATCG) letters
The order determines what they will made = gene
A gene is instruction of a trait (eigenschap)
Slide 5 - Tekstslide
Who will have the longest DNA string?
A
Bacteria
B
Human
C
Canopy plant
D
Fruit fly
Slide 6 - Quizvraag
The more complex a organism the bigger the genome
Slide 7 - Tekstslide
DNA
In the nucleus (celkern) of the cell
Coiled up (opgekruld) in the cell
Slide 8 - Tekstslide
What happens if there is a change in the DNA sequence?
A
You die
B
You will be a superhero
C
Nothing happens
D
You get a new trait
Slide 9 - Quizvraag
Mutation: change in DNA sequence
Slide 10 - Tekstslide
If humans change DNA with mutations we call it genetic modification.
Is genetic modification bad?
A
Yes
B
No
Slide 11 - Quizvraag
Slide 12 - Video
Homework
Watch 2 video's and make the questions
- What is DNA and how does it work?
- What is a gene?
Questions and the links of the video are on SOM.
Slide 13 - Tekstslide
Why do we yawn?
Slide 14 - Tekstslide
Slide 15 - Video
How does DNA work?
Which letters are used to show the DNA code?
Slide 16 - Tekstslide
How does DNA work?
What is an amino acid?
Slide 17 - Tekstslide
How does DNA work?
How many proteins are there?
Slide 18 - Tekstslide
What is a gene?
What is made by genes?
Give at least 2 things proteins can do?
why is it incorrect to say that there is a blue eye gene or tantrum gene?
Slide 19 - Tekstslide
From small to big
chromosomes = bundled long DNA strand
Gene = instruction of a trait
Slide 20 - Tekstslide
Genotype versus phenotype
Slide 21 - Tekstslide
Slide 22 - Tekstslide
Make question 1 and 2 of traits
Use your text book
Done? Start reading the text book or start working on the rest of the questions of chapter 1.
timer
1:00
Slide 23 - Tekstslide
Karyogram picture set of chromosomes
How many chromosomes does a human have
And how many pairs
Is this a boy or a girl?
Slide 24 - Tekstslide
Difference between a body cell and a sex cell
Why is it logical that a sex cell has less chromosomes?
Slide 25 - Tekstslide
Make question 1- 6 of chromosomes and genes
Use your text book
Done? Start reading the text book or start working on the rest of the questions of chapter 1.
timer
1:00
Slide 26 - Tekstslide
Alleles
Chromosomes come in pairs
So for each genes you have two copies
an alle is a variant of a gene
You can have the same or two different alleles for a gene
Slide 27 - Tekstslide
Make question 1-3 of genes and alleles
Use your text book
Done? Well done you've fully completed your homework.
Slide 28 - Tekstslide
Slide 29 - Video
Cell division
Form of reproduction from cells
One mother cell makes 2 two daughter cells
Why and when is cell division required?
Slide 30 - Tekstslide
Asexual reproduction
Mother and daughter cell are identical
Identical = sharing the same DNA
Slide 31 - Tekstslide
Slide 32 - Tekstslide
Sexual reproduction
Slide 33 - Tekstslide
Difference between diploid and haploid
During sexual reproduction two haploid cells form a embryo
This increase the genetic variation
Why is genetic variation good?
Slide 34 - Tekstslide
Slide 35 - Tekstslide
Twins
Slide 36 - Tekstslide
Remember genotype vs phenotype
Slide 37 - Tekstslide
Karyogram picture set of chromosomes
Chromosomes comes in pairs
Slide 38 - Tekstslide
Remember alleles
Chromosomes come in pairs
So for each genes you have two copies
an alle is a variant of a gene
You can have the same or two different alleles for a gene
Slide 39 - Tekstslide
Chromosomes and alleles combined
Three different options
The allele that is visible in the phenotype is called dominant.
Dominant allele = capital letter
Slide 40 - Tekstslide
Dominant versus recessive
Dominant allele is expressed
Opposite of dominant = recessive
Recessive allele gets a lowercase letter
Slide 41 - Tekstslide
Homework
Homework will be questions about chapter 2 + chapter 3
Chapter 2: asexual reproduction: 2,3; sexual reproduction: 2,3 and twins: 1,2
Chapter 3: 1 until 4
Documents can be found on SOM.
Slide 42 - Tekstslide
Slide 43 - Tekstslide
Slide 44 - Tekstslide
Welcome!
Please grab your homework of chapter 2 and chapter 3.
Done start working the genes and inheritance match and draw document.
Slide 45 - Tekstslide
Homework questions
Slide 46 - Tekstslide
Answers Genes and inheritance match and draw
Slide 47 - Tekstslide
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