What type of dominance?
Non-Mendelian Punnett Squares
Multiple Alleles
100
Two pea pods, one red and one yellow begin budding and grow a plant with yellow pods.
Complete Dominance
100
In Smileys, eye shape can be starred, circular, or a circle with a star.
Show the cross between a star-eyed and a circle eyed. What are the phenotypes of the offspring?
All star-circle eyes.
100
In rabbits, a series of multiple alleles controls coat color in the following way:
Cross a Ccch with a cchcch rabbit. What is the probability of having a dark grey rabbit?
1/2
50%
200
A man with blonde hair and a woman with dark brown hair have twins with light brown hair.
Incomplete Dominance
200
A white cow is ww, a red cow is rr, and a Brown cow is rw. In a cross between a white haired parent and a red haired parent, how many offspring will be brown?
4/4, 100%
200
In rabbits, a series of multiple alleles controls coat color in the following way:
Cross a Cch with a cchch rabbit. What is the probability of having a Himilayan rabbit?
1/4
25%
300
A cross between white and purple pea plants creates purple and white offspring.
codominance
300
Snapdragons are incompletely dominant for color; they have phenotypes red, pink, or white. The red flowers are homozygous dominant, the white flowers are homozygous recessive, and the pink flowers are heterozygous. If two pink flowers are crossed, what is the probability that they will make a white flower?
25%
300
In rabbits, a series of multiple alleles controls coat color in the following way:
Cross a white rabbit with a chc rabbit. What is the probability of having a white rabbit?
1/2
50%
400
A green PJ bunny (gg) was crossed with a blue PJ Bunny (bb). The offspring were all purple (bg). This is called ______________.
What is incomplete dominance?
400
Suppose you mate a black rooster with a white hen. The feathers of all the offspring are gray (a color that is a mix of black and white). What is the probability of getting a white chicken if you mate a grey rooster and a white hen?
2/4 = 1/2 = 50%
400
Two parents think their baby was switched at the hospital. Its 1968, so DNA fingerprinting technology does not exist yet. The mother has blood type “O,” the father has blood type “AB,” and the baby has blood type “B.” Could the baby be theirs? Show the Punnett square.
Yes, there is a 50% the baby could be theirs.
500
A cross between white and purple pea plants creates purple offspring.
complete dominance
500
In crocus flowers, white (W) and purple (P) colors are codominant, and result in a purple and white striped flower when both genes are present. Leaf patterns are incompletely dominant and can have 2 leaves (t) or four leaves (f). What probability of getting a white flower with 2 leaves from the cross pollination of a striped crocus with 2 leaves and a white crocus with 3 leaves?
WWtt
WW = 1/2
tt = 1/2
Probability = 1/2 * 1/2 = 1/4 = 25%
500
In blood typing, the allele for type A (IAIA, IAi) and the allele for type B (IBIB, IBi) are codominant. The allele for type O (ii) is recessive. If the father heterozygous for blood type A, and the mother is heterozygous for blood type B, what is the probability that the offspring would be type B?
25%