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What else can I help you with?
What is the type of allele that only effect the phenotype in the homozygous chromosome?
Recessive. Dominant alleles are expressed in both homozygous and heterozygous individuals (DD or Dd), but recessive alleles are only expressed in homozygous individuals (dd).
What are The observable traits of an organism are?
phenotype
What does a heterozygous organism have?
It depends on the context. The only way to demonstrate practically that an organism is homozygous for a particular trait is to cross it (breed it) with another showing the recessive phenotype for that trait. When enough ofspring have been produced to be statistally significant then the conclusion can be drawn. It may also be possible to deduce whether an organism is homozygous by knowing the genotypes of the parents. Also, if you already know which phenotype is dominant then an organism showing the recessive phenotype is, by definition, homozygous. Of course, this all only applies to single gene inheritance!
What is a person who has one recessive allele for a trait and one dominant allele for the same trait and is able to pass in the trait on to their offspring?
That is heterozygous. Some scientist call these "hybrids"(no joke)The person is heterozygous for that trait and will have the dominant phenotype.An organism with both a dominant and recessive allele for a specific trait is called an heterozygote. They are heterozygous for this trait.
Why are there so many phenotypes in polygenic inheritance?
Polygenic means many genes are influencing one trait. So, the inheritance of this gives you are all sorts of combination of genes that are expressed in various phenotypes. As example think of the different heights of siblings. There are 5 to 7 genes that influence height and in the same relative environment of siblings you get many combinations of those genes which express themselves in different height same sex siblings.
How is phenotype expressed in a incomplete dominance?
It's expressed when a heterozygous phenotype is between two homozygous phenotypes.
Condition that exists when the heterozygous phenotype is somewhere in between the two homozygous phenotypes?
Incomplete dominance
When can you use a test cross?
A test cross is used to determine the genotype of an organism exhibiting a dominant phenotype. By crossing this organism with a homozygous recessive individual, the offspring's phenotypes reveal whether the dominant organism is homozygous or heterozygous. If any recessive phenotypes appear in the offspring, the dominant parent is heterozygous; if all offspring display the dominant phenotype, the parent is likely homozygous. This method is commonly employed in genetics to assess inheritance patterns.
What is the genotype and phenotype of homozygous?
Are you talking about phenotype or genotype? Phenotype is the expression of the genotype. Genotype is what you inherited. Phenotype is what you see. Homozygous is the same. Heterozygous is different. If you inherit one allele for blue eyes and one allele for brown eyes, your phenotype should be brown eyes. Your genotype would be brown eyes, blue eyes. You would have a heterozygous genotype.
When traits are inherited in an incomplete dominance pattern what is true about the phenotype of the heterozygotes?
A trait that exhibits incomplete dominance, is one in which the heterozygous offspring will have a phenotype that is a blend between the two parent organisms. An example of this is when a homozygous red sweet pea flower crossed with a homozygous white sweet pea flower, their offspring will be heterozygous and have the pink phenotype, rather than either red or white.
How many phenotypes can come from a heterozygous parent and a homozygous recessive parent?
Two types: A heterozygous parent (Aa) and a homoygous recessive parent (aa) can produce phenotypically dominate and phenotpically recessive offspring (with 50% genotypes Aa and the other 50% aa). If the genes are co-dominate then the offspring can have blended traits and recessive traits phenotypically.
When a cross between a red flower and a white flower yeilds pink offspring the trait is?
Incomplete dominance, where the heterozygous phenotype is an intermediate blend of the two homozygous phenotypes.
How does incomplete dominance work in genetic inheritance?
Incomplete dominance occurs when neither allele is completely dominant over the other, resulting in a blending of traits in the offspring. This means that the phenotype of the heterozygous individual is a mix of the phenotypes of the two homozygous parents.
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.
How are codominant alleles and incompletely dominant similar?
Codominance and incomplete dominance can only exist if the genotype has heterozygous alleles.
What does incomplete dominan ces mean?
Incomplete dominance refers to a genetic phenomenon in which the heterozygous phenotype is a blend of the two homozygous phenotypes. This means that neither allele is completely dominant over the other, resulting in a unique intermediate phenotype in heterozygous individuals.
What Alleles that display equal power in determining a phenotype?
Homozygous dominant and heterozygous both are a dominant phenotype.
