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What is unique about incomplete dominance?
Related Topics
Wize University Biology Textbook > Mendelian Genetics
Incomplete Dominance, Co-Dominance
3 Activities
What is unique about incomplete dominance?
the phenotype lies somewhere in the middle of the two homozygous phenotypes
the phenotype is exactly in the middle of the two homozygous phenotypes
incomplete dominance can have more than two allelic forms present in one organism
both phenotypes of the two alleles are expressed at the same time
I don't know
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More Incomplete Dominance, Co-Dominance Questions:
If you cross a red flower that is RR and another flower that is RR with a white one that is rr and all the offspring came out red and white this would an example of _____
If you cross a red flower that is RR and another flower that is RR with a white one that is rr and all the offspring came out pink this would an example of _____
In a population of fruit flies, the R allele confers regular black eye colour while the r allele produces red eye colours. Individuals that are heterozygous have pink eyes. In a population of 150 flies, 15 have red eyes, 90 have normal black eyes and 45 have pink eyes.
a) What type of dominance do these alleles show?
b) Is this population in Hardy-Weinberg equilibrium?
In a population of fruit flies, the R allele confers regular black eye colour while the r allele produces red eye colours. Individuals that are heterozygous have pink eyes. In a population of 150 flies, 15 have red eyes, 90 have normal black eyes and 45 have pink eyes.
a)What type of dominance do these alleles show?
b) Is this population in Hardy-Weinberg equilibrium?
In a population of fruit flies, the R allele confers regular black eye colour while the r allele produces red eye colours. Individuals that are heterozygous have pink eyes. In a population of 150 flies, 15 have red eyes, 90 have normal black eyes and 45 have pink eyes.
a) What type of dominance do these alleles show?
b) Is this population in Hardy-Weinberg equilibrium?
Assume the following dihybrid crosses where for a particular gene, A represents the dominant allele and a, the recessive allele, and for another trait, B represents the dominant allele and b, the recessive allele. Genes show complete dominance.
Assume the following dihybrid crosses where for a particular gene, A represents the dominant allele and a, the recessive allele, and for another trait, B represents the dominant allele and b, the recessive allele. Genes show complete dominance.
Practice: Multi-loci Crosses
A beetle species has the following genetic relationships:
Wing length - long (L) is sex-linked dominant to short (l) on the D chromosome
Wing colour - Blue (B) is co-dominant with black and makes purple wings (P) which are dominant to white (b)
In a population of fruit flies, the R allele confers regular red eye colour while the r allele produces white eye colours. The R gene produces a red pigment, the recessive allele of this gene (r) is nonfunctional. Individuals that are heterozygous have pink eyes. In a population of 150 flies, 15 have white eyes, 90 have normal red eyes and 45 have pink eyes.
Which of the follow does not result in a departure from Hardy-Weinberg equalibrium?
Imagine a set of genes that code for climbing speed of a sloth where there are slow, medium and fast climbers. The slow gene (S) and the fat (F) genes are the two loci that control climbing speed. If you produce a dihybrid cross of sloths from these two genes you get 9 slow, 3 medium and 4 fast.
What genotype would produce a sloth that climbs at medium speed?
If a heterozygote's phenotype lies exactly in the middle of the phenotypes of both homozygotes, what is this called?
We crossed a red flower (RR) with a white flower (rr) and the result was a progeny of pink flowers. We crossed flowers of F1 with white flowers (rr) and the result with brighter pink flowers, which of the following is the principle that best explains this experiment?