Download presentation
Presentation is loading. Please wait.
Published byAstri Magnussen Modified over 6 years ago
7
Toonetics
8
Lab instructions These two cartoon parents are going to produce 4 new characters. Both parents contain a dominant and recessive alele for each gene.
9
Chromosomes These cartoons have a chromosome number of 10.
#1 S H G Heads #1 s h g Tails #3 N E b D Heads #3 n e B d Tails These cartoons have a chromosome number of 10. 2 pairs of 5 different chromosomes. Each new character will receive 1 of each pair from each parent. #2 c a G Heads #2 C A g Tails #4 M F A d Heads #4 m f a D Tails Sex X V Heads Sex Y No gene for V Tails
10
Chromosome 1 Chromosome 1 contains 3 genes
#1 S H G Heads #1 s h g Tails Chromosome 1 contains 3 genes Ss is the gene for square or round head H, h represent different hair types Gg is one of 2 genes for skin color Chromosome 1
11
Chromosome 2 Chromosome 2 contains 3 genes
#2 c a G Heads #2 C A g Tails Chromosome 2 contains 3 genes Cc is the gene for chin shape Aa is one of 2 genes for eye color Gg is one of 2 genes for skin color Chromosome 2
12
Chromosome 3 Chromosome 3 contains 4 genes
#3 N E b D Heads #3 n e B d Tails Chromosome 3 contains 4 genes Nn is the gene for nose size Ee represent different eye shapes Bb is for different eyebrows Chromosome 3
13
Chromosome 4 Chromosome 4 contains 4 genes
Mm is the gene for mouth size Ff gene for Freckles Aa is one of the genes for eye color Dd is one of two genes for hair color #4 M F A d Heads #4 m f a D Tails Chromosome 4
14
Sex Chromosome Female Sex X V Heads Sex X v Heads The sex chromosomes determine whether the character is male (XY) or female (XX) V is the pointy ear (Vulcan) gene Male Sex X V Heads Sex Y No gene for V Tails
15
#1 S H G Heads #1 s h g Tails Creating Gametes #1 S H G Heads #1 s h g Tails #2 c a G Heads #2 C A g Tails Each parent will flip a coin to select one chromosome from each pair to pass on to the new character #2 c a G Heads #2 C A g Tails #3 N E b D Heads #3 n e B d Tails #3 N E b D Heads #3 n e B d Tails #4 M F A d Heads #4 m f a D Tails #4 M F A d Heads #4 m f a D Tails Sex X V Heads Sex X v Tails Sex X V Heads Sex Y No gene for V Tails
16
Mother Egg Sperm Father #1 S H G Heads #1 s h g Tails #1 S H G Heads
#2 c a G Heads #2 C A g Tails #2 c a G Heads #2 C A g Tails #3 N E b D Heads #3 n e B d Tails #3 N E b D Heads #3 n e B d Tails #4 M F A d Heads #4 m f a D Tails #4 M F A d Heads #4 m f a D Tails Sex X V Heads Sex X v Tails Sex X V Heads Sex Y No gene for V Tails
17
XX/XY Y S Ss H Hh C Cc N nn E ee B BB M MM F FF V v- A Aa AA D dd dd G Gg gG
18
Male Y Ss Hh Cc nn Small ee BB MM FF V- Aa AA dd dd Gg gG
19
Male Y Ss Hh Cc nn Small ee BB MM FF V- Aa AA Brown dd dd Red Gg gG Tan
20
Male Y Ss Hh Cc nn Small ee BB MM FF v- Aa AA Brown dd dd Red Gg gG Tan
21
Male Y Ss Hh Cc nn Small ee BB MM FF v- Aa AA Brown dd dd Red Gg gG Tan
23
Males Females Predicted ________ Predicted ________ Actual ________
30 Predicted ________ 30 Actual ________ 27 Actual ________ 33
24
Predicted ________ 45 Predicted ________ 15
25
Predicted ________ Predicted ________ Actual ________ Actual ________
45 Predicted ________ 15 Actual ________ 43 Actual ________ 17
26
20 7 ________ Predicted ________ Predicted ________ Actual ________
28
20 7 19 8 ________ Predicted ________ Predicted ________
Actual ________ Actual ________
29
45 15 Predicted ________ Predicted ________ Actual ________
31
45 15 46 14 Predicted ________ Predicted ________ Actual ________
33
Sex Chromosome Female Sex X V Heads Sex X v Heads The sex chromosomes determine whether the character is male (XY) or female (XX) V is the pointy ear (Vulcan) gene Male Sex X V Heads Sex Y No gene for V Tails
34
Sex Chromosome Female Sex X V Heads Sex X v Heads The sex chromosomes determine whether the character is male (XY) or female (XX) V is the pointy ear (Vulcan) gene Male Sex X V Heads Sex Y No gene for V Tails
35
Predicted ________ Predicted ________ Actual ________ Actual ________
37
Easier Way to do multiple traits
x Do a separate Punnett Square for each trait Rr x Rr Yy x Yy Y y R r RR Rr Y YY Yy R y Rr rr Yy yy r 3/4 Round 1/4 wrinkled 3/4 Yellow 1/4 green
38
Easier Way to do multiple traits
x 3/4 Round 1/4 wrinkled 3/4 Yellow 1/4 green Muliply the probabilities of each trait Round and Yellow = ¾ x ¾ = 9/16 Round and Green = ¾ x ¼ = 3/16 Wrinkled and Yellow = ¼ x ¾ = 3/16 Wrinkled and Green = ¼ x ¼ = 1/16 Easier Way to do multiple traits
39
15 5 5 2 Predicted ________ Predicted ________ Predicted ________
Actual ________ Actual ________ Actual ________ Actual ________
42
15 5 5 2 19 8 Predicted ________ Predicted ________ Predicted ________
Actual ________ Actual ________ Actual ________ Actual ________ #1 S H G Heads #1 s h g Tails
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.