Genetics:From Proteins to Mendel 1
Genetics:From Proteins to Mendel 2
Students will work in pairs.
Each student picks up a set of 4 x 2 chromosomes and a coin
The chromosomes are in different colours and present different alleles.
Each student writes on a sheet the phenotype and the genotype.
Students simulate meiosis by tossing a coin. If heads, take number , if tails number ‘
Each student takes the simple chromosome and matches it with their partner’s simple chromosome.
Read the new set of 4 x2 chromosome and write the new baby phenotype and genotype
Repeat (all) the process again at least three times (for three children)
PROCEDURE
NILE-ELT
see my changes in the teachers notes!
Genetics:From Proteins to Mendel 3
GENOTYPE 1 GENOTYPE 2 GENOTYPE 3 SEX HEMOPHILIA
FATHER’SGAMETES
MOTHER’S GAMETES
CHILD 1
CHILD 2
CHILD3
CHILD 4
FAMILY X1X1/X1Y1
Genetics:From Proteins to Mendel 4
Eye colour
Hair colour
Five fingers
Genetics:From Proteins to Mendel 5
iiiiII .. XX
Nucleous
NILE-ELT
Rosa. In English, this is spelled ' nucleus' ...unless you are talking about something completely different!
Genetics:From Proteins to Mendel 6
.. //XXII.. //XXII
II // XX
Genetics:From Proteins to Mendel 7
Genetics:From Proteins to Mendel 8
nn
nn2n
Genetics:From Proteins to Mendel 9
Traits:Rolling Tongue: dominant (R)/recessive (r) allele
Blood Groups: Multiple allele serie
A, B, AB, O IA IB i IA = IB Codominance IA > i and IB > i
Skin Colour: Intermediate expression
Light/Dark/Middle
Sex: Girl or Boy
Haemophilia XH Sex linked traitGenetics:From Proteins to Mendel 10
NILE-ELT
is this the right word in English? Should it be 'series'?
Genetics:From Proteins to Mendel
1’
rr
1
ARARR r
Autosomes 1 and 1’
11
Genetics:From Proteins to Mendel
1’
rr
1
ARARr R
12
Genetics:From Proteins to Mendel
II
IIIIIA, IB or iIA , IB or i
2 2’
Autosomes 2 and 2’
13
Genetics:From Proteins to Mendel
DDD d
3 3’
Autosomes 3 and 3’
14
Genetics:From Proteins to Mendel
DDd D
3 3’
Autosomes 3 and 3’
15
Genetics:From Proteins to Mendel
Sex Chromosome or Heterochromosomes: Male
16
Genetics:From Proteins to Mendel
Sex Chromosomes or Heterochromosomes: Female
17
Genetics:From Proteins to Mendel
Sex- linked traits (haemophilia)
XH
18