Homozygous red: Homozygous white: Roan: Show the Punnett Square for a cross between two roan cows: Probability of roan offspring: Probability of red offspring: Probability of white offspring:

An individual with the genotype AA is crossed with an individual with the genotype Aa, producing 120 offspring. The number of offspring with genotype AA will be close to * O 120 90 O 60 30

Brown eyes are dominant over blue eyes. This is NOT a sex linked trait. Cross a brown eyed Color blind male (whose mother had blue eyes) with a normal blue eyed female (whose father was colorblind)

Three different genes determine the coat colour of cats. One of the genes controls the black-based coat colour. There are three alleles for black-based coat colour genes with the following order of dominance: black (B) > chocolate (bch) > cinnamon (bc). Two black cats were crossed. The offspring produced were three black kittens and one chocolate kitten. What is the probability of having a male chocolate kitten? Select one: a. 0.50 b. 0.25 c. 0.13 d. 0.06

Widow's peak is dominant to straight hair line. What is the chance of producing a child with a straight hair line from parents that one is homozygous dominant and the other is homozygous recessive?   0% (no chance)   100% (4 out of 4)   75% (3 out of 4)   25% (1 out of 4)   50% (2 out of 4)

homozygous recessive: 3) Round seeds are dominant over wrinkled seeds in pea plants. Fill in the Punnett square and determine the expected genotypes and phenotypes of the F₁ generation by crossing homozygous recessive and heterozygous parents. J Possible genotypes of offspring: Possible phenotypes of offspring: Percentage of offspring that are round: % of offspring that are homozygous dominant: heterozygous: J j J j J j j J j J j Fi generation If there were 3500 seeds collected, predict how many would be round? Predict how many seeds would be homozygous dominant? homozygous recessive: % wrinkled: % % homozygous recessive: wrinkled? heterozygous? % %

What would be the phenotypic and genotypic ratio in F2 generation of the offspring of two parents? One parent is homozygously dominant for height and the other parent is recessive or height.

Given the following parental cross: GgAattHhFfYY x GgAaTtHhffyy What would be the probability of have an individual that was homozygous recessive for each trait? Assume independent assortment. O 1/256 O 1/4096 O 1/128 O 1/2048 O 1/512 O 1/64 O 1/1024