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In dogs wire hair S is dominant to smooth s In a cross of a homozygous wire-haired dog with a smooth-haired dog what will be the phenotype of the F1 generation?
Wiki User
∙ 11y ago
All the F1 will have wire hair.
The reason:A homozygous wire-haired dog must be SS. It must have at least one S allele if it shows the dominant character, and "homozygous" means pure-breeding, so there is no other allele present.
A smooth-haired dog must be ss. Any organism displaying a recessive trait must be homozygous, as a dominant allele would mask the recessive one.
So the cross is:
SS x ss
and one parent must pass on the S gene, one the s. Therefore all the F1 must be Ss. Their phenotype is wire-haired, because they have a dominant allele, but they are all heterozygous, because they inherited a recessive gene from the smooth-haired parent.
This cross demonstrates Mendel's First Law.
Wiki User
∙ 11y ago
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A homozygous violet flowered pea plant is crossed with a homozygous with flowered pea plant. If the violet color is dominant (V), what is the genotype and phenotype of the F1 generation?
What is the genotype and phenotype of the F1 generation
What phenotype is produced by AB genotype?
The genotype AA represents a homozygous dominant genotype. The capital letter "A" represents the dominant allele, while the lowercase letter "a" would represent the recessive allele. If both dominant alleles are present in a genotype (homozygous dominant) then the phenotype is "A" phenotype. If one dominant allele and one recessive allele are present (heterozygous dominant) then the phenotype is "A". Finally, if both recessive alleles "a" are present (homozygous recessive) then the phenotype is "a". Therefore, the answer to your question is the genotype AA would result in an "A" phenotype because the genotype is homozygous dominant.
Which phenotype pairing can the genotypes of the individuals be directly known?
The phenotype pairings which the genotypes of individuals be directly known are homozygous recessive.
What is similar because the heterozygous phenotype is different from the homozygous dominant phenotype?
incomplete dominance
What describes organisms or genotypes that are homozygous for a specific trait that always produce offspring of the same phenotype?
Yes, homozygous with homozygous (both the same genotype) will produce homozygous of the same genotype
A homozygous violet flowered pea plant is crossed with a homozygous with flowered pea plant. If the violet color is dominant (V), what is the genotype and phenotype of the F1 generation?
What is the genotype and phenotype of the F1 generation
In the mendels experiment why did traits show up in the f2 generation that were not present in the f1 generation?
All of the F1 generation are heterozygous, therefore 100% exhibit the dominant phenotype. The F2 generation has a ratio of 1 homozygous dominant: 2 heterozygous: 1 homozygous recessive. This results in a phenotypic ratio of 3 dominant: 1 recessive.
In Mendels experiment why did traits show up in F2 generation that were not present in the F1 generation?
All of the F1 generation are heterozygous, therefore 100% exhibit the dominant phenotype. The F2 generation has a ratio of 1 homozygous dominant: 2 heterozygous: 1 homozygous recessive. This results in a phenotypic ratio of 3 dominant: 1 recessive.
Is homozygous dominant a geneotype or phenotype?
homozygous dominant is the genotype. hypothetically, if the gene was for the color purple in a flower, the phenotype would be purple, while the genotype would be homozygous dominant AKA Pp.
What is the phenotype produced between the two homozygous parents?
The same phenotype as both of the parents.
What is the probability that the offspring of a homozygous dominant individual and a homozygous recessive individual exhibit the dominant phenotype?
Given those conditions, the offspring have a 50% chance of demonstrating the dominant phenotype and a 50% chance of demonstrating the recessive phenotype.
When a straight thumbed homozygous person has offspring with a hitchhiker's thumbed homozygous person the offspring will have which trait?
Straight thumbs, hitch hiker's thumb is recessive...so the F1 generation in this example would be heterozygous and have the dominant (straight thumbed) phenotype.
What is the phenotype of homozygous yellow grained corn and heterozygous yellow grained corn?
The phenotype (as I assume would be colour) for both homozygous and heterozygous yellow-grained corn is yellow.
What Alleles that display equal power in determining a phenotype?
Homozygous dominant and heterozygous both are a dominant phenotype.
How is phenotype expressed in a incomplete dominance?
It's expressed when a heterozygous phenotype is between two homozygous phenotypes.
What phenotype is produced by AB genotype?
The genotype AA represents a homozygous dominant genotype. The capital letter "A" represents the dominant allele, while the lowercase letter "a" would represent the recessive allele. If both dominant alleles are present in a genotype (homozygous dominant) then the phenotype is "A" phenotype. If one dominant allele and one recessive allele are present (heterozygous dominant) then the phenotype is "A". Finally, if both recessive alleles "a" are present (homozygous recessive) then the phenotype is "a". Therefore, the answer to your question is the genotype AA would result in an "A" phenotype because the genotype is homozygous dominant.
What is the probaility that the offspring of a homozygous dominant individual and a homozygous recessive individual will exhibit the dominant phenotype?
100 percent.
