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Red (R) is dominant to black (r), and small (S) is dominant to large (s). If two RrSs organisms are crossed, what will the predicted outcome be?
25% red, 50% orange, 25% yellow
50%
100% long and short mixed
0%
9 red and small : 3 red and large : 3 black and small : 1 black and large
25% will be BfLl
25%
no- both parents could be heterozygous for their blood types
What percentage of the offspring from a AaBb x aabb cross would be expected to be homozygous recessive for both traits?
25% red, 50% orange, 25% yellow
50%
100% long and short mixed
0%
9 red and small : 3 red and large : 3 black and small : 1 black and large
25% will be BfLl
25%
no- both parents could be heterozygous for their blood types
In cacti, plants can have long spines (LL), short spines (SS) or both long and short (LS). If a long spined cactus is crossed with a short spined cactus, what are the predicted phenotypes of the offspring?
25% red, 50% orange, 25% yellow
50%
100% long and short mixed
0%
9 red and small : 3 red and large : 3 black and small : 1 black and large
25% will be BfLl
25%
no- both parents could be heterozygous for their blood types
In ladybugs, the allele for red color (R) is incompletely dominant to the allele for yellow color (r). Individuals with the genotype Rr are orange. What is the predicted phenotypic ratio if two orange ladybugs mate?
25% red, 50% orange, 25% yellow
50%
100% long and short mixed
0%
9 red and small : 3 red and large : 3 black and small : 1 black and large
25% will be BfLl
25%
no- both parents could be heterozygous for their blood types
Humans can have type A, B, AB, or O blood. A and B are codominant to each other and dominant to O. If a woman with type A blood and a man with type B blood have a baby with type O blood, was the woman necessarily unfaithful (cheated)?
25% red, 50% orange, 25% yellow
50%
100% long and short mixed
0%
9 red and small : 3 red and large : 3 black and small : 1 black and large
25% will be BfLl
25%
no- both parents could be heterozygous for their blood types
If several roses with the genotype rrTt are crossed with roses with the genotype RRtt, what percentage of the offspring will be dominant for both traits?
25% red, 50% orange, 25% yellow
50%
100% long and short mixed
0%
9 red and small : 3 red and large : 3 black and small : 1 black and large
25% will be BfLl
25%
no- both parents could be heterozygous for their blood types
Mice can have black fur (B) or white fur (b). They can also have long tails (L) or short tails (l). What percentage of the offspring from a BbLl x bbss cross would be heterozygous for both traits?
25% red, 50% orange, 25% yellow
50%
100% long and short mixed
0%
9 red and small : 3 red and large : 3 black and small : 1 black and large
25% will be BfLl
25%
no- both parents could be heterozygous for their blood types
Humans can have type A, B, AB, or O blood. A and B are codominant to each other and dominant to O. If a woman with type AB blood and a man with type O blood have a baby, what is the chance the baby will have type O blood?
25% red, 50% orange, 25% yellow
50%
100% long and short mixed
0%
9 red and small : 3 red and large : 3 black and small : 1 black and large
25% will be BfLl
25%
no- both parents could be heterozygous for their blood types
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