When a trait is co-dominant the heterozygous genotype shows
____________ traits for phenotype. To do problems use _____________
letters.
Slide 7
BOTH (stripes/spots) All capital letters
Slide 8
When a trait is incomplete dominant the heterozygous genotype
shows ____________ of traits for phenotype. To do problems use
_____________ letters.
Slide 9
BLEND All capital letters
Slide 10
Sex linked traits are on the _____ chromosomes, so the
recessive trait occurs in what gender more often?
Slide 11
X Males Be sure to use X and Y in problems !
Slide 12
What are the chances of a mom with blood type O and a dad with
blood type AB having a child with blood type O?
Slide 13
0% P = ii x I A I B
Slide 14
If you have blood type A-, who can you receive blood from?
(list all possibilities)
Slide 15
A- and O-
Slide 16
Long hair is dominant over short hair, Tall is dominant over
short, Curly hair is dominant over straight hair, Black is
co-dominant with white. The puppys chromosome from mom is on top
The puppys chromosome from dad is on bottom what length of hair
will puppy have?
Slide 17
Long (Ll)
Slide 18
Long hair is dominant over short hair, Tall is dominant over
short, Curly hair is dominant over straight hair, Black is
co-dominant with white. The puppys chromosome from mom is on top
The puppys chromosome from dad is on bottom What color of hair will
puppy have?
Slide 19
Black and white spots. (co-dominant)
Slide 20
Long hair is dominant over short hair, Tall is dominant over
short, Curly hair is dominant over straight hair, Black is
co-dominant with white. The puppys chromosome from mom is on top
The puppys chromosome from dad is on bottom what height was
dad?
Slide 21
Tall (T)
Slide 22
Long hair is dominant over short hair, Tall is dominant over
short, Curly hair is dominant over straight hair, Black is
co-dominant with white. The puppys chromosome from mom is on top
The puppys chromosome from dad is on bottom What height was the
mom?
Slide 23
Cant tell because only see one chromosome and it is
recessive
Slide 24
What does it mean to be a carrier?
Slide 25
To not have the trait but be able to pass it on so genotype is
heterozygous
Slide 26
1. In Mendels experiments, he crossed pea plants with green
pods with pea plants with yellow pods. He found that all the
offspring had green pea pods. a. The plants used in the original
cross are members of the ________________ generation. b. The
offspring of the cross make up the _____ filial generation or the
______ generation. c. The pod color that is dominant is ________,
while the recessive pod color is__________. d. What would the
genotypes be for the parents?
Slide 27
1. In Mendels experiments, he crossed pea plants with green
pods with pea plants with yellow pods. He found that all the
offspring had green pea pods. a. The plants used in the original
cross are members of the ____parental (P)__ generation. b. The
offspring of the cross make up the _first filial generation or the
___F1___ generation. c. The pod color that is dominant is green,
while the recessive pod color is_yellow__. d. What would the
genotypes be for the parents? GG x gg
Slide 28
3. In rose, red flowers are incompletely dominant with white
flowers. Heterozygous individuals produce pink flowers Cross a pink
rose with a white one. No trait is dominant. What is the chance of
the offspring being pink?
Slide 29
4. Stripes in geckos are controlled by a single gene with two
alleles that are co-dominant. If a purple and yellow stripped gecko
is crossed with a purple one, what will their offspring look
like?
Slide 30
Hemophilia is sex-linked. What are chances of a normal man and
hemophiliac women having hemophiliac kids?
Slide 31
7. Cross a homozygous purple flower with a heterozygous purple
flower. White is the recessive color. Show F 1 probability.
Slide 32
5. A pea plant has smooth or wrinkled peas. The phenotype ratio
is 50% smooth: 50% wrinkled. Find the genotype of the parents.
Slide 33
8. SpongeBob loves growing flowers for his pal Sandy! Her
favorite flowers, Poofkins, are found in red, blue, and purple. Use
the information provided and your knowledge of incomplete
dominance: What would happen if SpongeBob crossed a Poofkin with
red flowers with a Poofkin with purple flowers. What would the
chance of Spongebob making a purple flower?
Slide 34
11. In peacocks, tail color is sex-linked. Blue is dominant
over off white. Cross a blue tailed male to a carrier. Show F1
results.
