Canine dew claws are generally considered to be a polygenic trait, which means they are influenced by multiple genes rather than being strictly determined by a single dominant or recessive allele. In some breeds, dew claws are more common and can be retained, while in others, they may be selectively removed. The presence or absence of dew claws can vary widely among different breeds due to selective breeding practices.
When two recessive alleles are joined together in an individual, the individual will display the recessive trait associated with those alleles. This is because recessive alleles only express themselves when a dominant allele is not present.
A gene with one completely dominant allele and two recessive alleles can produce two different traits. The dominant allele will express its trait regardless of whether it is paired with another dominant or a recessive allele, while the two recessive alleles will express their trait only when paired together. Therefore, the possible combinations of alleles result in one dominant trait and one recessive trait.
dominant-appears in first generation recessive-seems to dissapear
No, a phenotype refers to the observable traits or characteristics of an individual, which result from the interaction of its genotype (the genetic makeup, including both dominant and recessive alleles) with the environment. Recessive alleles can influence phenotype, but they do so only when two copies are present, as their effects are masked by dominant alleles. Therefore, a phenotype encompasses all expressed traits, not just those linked to recessive alleles.
If an organism has two factors (alleles) for a dominant trait, the dominant allele will be expressed in the phenotype. This is because dominant traits mask the effect of recessive alleles, so the presence of two dominant alleles will result in the dominant trait being displayed.
When two recessive alleles are joined together in an individual, the individual will display the recessive trait associated with those alleles. This is because recessive alleles only express themselves when a dominant allele is not present.
A gene with one completely dominant allele and two recessive alleles can produce two different traits. The dominant allele will express its trait regardless of whether it is paired with another dominant or a recessive allele, while the two recessive alleles will express their trait only when paired together. Therefore, the possible combinations of alleles result in one dominant trait and one recessive trait.
dominant-appears in first generation recessive-seems to dissapear
A 3:1 phenotypic ratio (Mendelian inheritance).
No, a phenotype refers to the observable traits or characteristics of an individual, which result from the interaction of its genotype (the genetic makeup, including both dominant and recessive alleles) with the environment. Recessive alleles can influence phenotype, but they do so only when two copies are present, as their effects are masked by dominant alleles. Therefore, a phenotype encompasses all expressed traits, not just those linked to recessive alleles.
If an organism has two factors (alleles) for a dominant trait, the dominant allele will be expressed in the phenotype. This is because dominant traits mask the effect of recessive alleles, so the presence of two dominant alleles will result in the dominant trait being displayed.
No, the presence of 4 recessive genes cannot result in a dominant gene. Dominant genes are expressed when at least one copy of the dominant allele is present, masking the effects of any recessive alleles.
False. Pea plants can have short stems if they have two recessive alleles for short stems, but they can also have short stems if they have a combination of dominant and recessive alleles that result in a short stature.
If both alleles are recessive, then you will haev a case where contrasting alleles that do not have dominance. Neither allele has the power to be dominant so they will both have equal power of genetics.
Alleles are determined by variations in the DNA sequence of a gene. These variations can result in different forms of the gene (alleles) that can affect traits or characteristics in an organism. Alleles are inherited from parents and can be dominant or recessive, affecting how they are expressed in the phenotype.
A genotype consisting of two identical alleles of a gene for a particular trait is called homozygous. This means that both alleles are the same, which can either be dominant or recessive. Homozygous genotypes can result in the expression of a specific trait depending on the alleles involved.
E. Multiple alleles. Multiple alleles refers to a gene that has more than two alleles which can result in a larger number of possible trait variations. This is different from traits that are controlled by dominant and recessive alleles, or exhibit incomplete dominance.