Genetics:From Proteins to Mendel1. 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.

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Genetics:From Proteins to Mendel1

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

Genetics:From Proteins to Mendel3 GENOTYPE 1GENOTYPE 2GENOTYPE 3SEXHEMOPHILIA FATHER’S GAMETES MOTHER’S GAMETES CHILD 1 CHILD 2 CHILD3 CHILD 4 FAMILY X 1 X 1 /X 1 Y 1

Genetics:From Proteins to Mendel4 Eye colour Hair colour Five fingers

Genetics:From Proteins to Mendel5 ii II.. XX Nucleous

Genetics:From Proteins to Mendel6.. //XXII II //XXII //XX

Genetics:From Proteins to Mendel7

8 n n n n 2n

Genetics:From Proteins to Mendel9

Traits : Rolling Tongue: dominant (R)/recessive (r) allele Blood Groups: Multiple allele serie A, B, AB, OI A I B i I A = I B Codominance I A > i and I B > i Skin Colour: Intermediate expression Light/Dark/Middle Sex: Girl or Boy Haemophilia X H Sex linked trait Genetics:From Proteins to Mendel10

Genetics:From Proteins to Mendel 1’1’ r r 1 AR R r Autosomes 1 and 1’ 11

Genetics:From Proteins to Mendel 1’1’ r r 1 AR r R 12

Genetics:From Proteins to Mendel I I II I A, I B or i 2 2’2’ Autosomes 2 and 2’ 13

Genetics:From Proteins to Mendel D D D d 33’3’ Autosomes 3 and 3’ 14

Genetics:From Proteins to Mendel D D d D 33’3’ 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) XHXH 18