0
What else can I help you with?
When does a recessive trait dominant over a dominant trait?
A recessive trait cannot be dominant over a dominant trait. Dominant traits are always expressed over recessive traits in heterozygous individuals because they mask the expression of the recessive trait.
When two recessive alleles are inherited the trait is observed?
When two recessive alleles are inherited, the trait associated with those alleles is observed because there is no dominant allele to mask its expression. This results in the individual displaying the recessive trait.
When is the only time a recessive phenotype can be observed?
A recessive phenotype can only be observed when an individual is homozygous recessive for that trait, meaning they have two copies of the recessive allele. This is because in a heterozygous individual, the dominant allele will mask the expression of the recessive allele.
What is one question about how traits are expressed when an organism has heterozygous alleles for a trait?
One question could be: How does the dominant allele in a heterozygous genotype mask the expression of the recessive allele in the phenotype of an organism?
What kind of allele must an organism inherit in order for a recessive trait to show up?
Neither of the parents will be affected. There may not be any one with he disease in either of the parents families (or there might be). Since each parent is a carrier and has a 50/50 chance of passing one copy of the gene to each child 1/4 of the children will not get the gene, 1/2 will be carriers (1 copy) and 1/4 wil be affected (2 copies).
What does it mean that an organism is homozygous recessive for a trait?
An organism that is homozygous recessive for a trait carries two copies of the recessive allele for that trait. This means that the individual will express the recessive trait because there is no dominant allele to mask its expression.
How do dominant and reccessive factors interact?
Dominant and recessive factors interact through the principles of inheritance, where dominant alleles mask the effects of recessive alleles in a heterozygous genotype. This means that if an organism carries one dominant and one recessive allele for a trait, the dominant trait will be expressed in the phenotype. Recessive traits only manifest when an individual has two copies of the recessive allele. Thus, the presence of a dominant allele can overshadow the influence of a recessive allele in determining observable characteristics.
When does a recessive trait dominant over a dominant trait?
A recessive trait cannot be dominant over a dominant trait. Dominant traits are always expressed over recessive traits in heterozygous individuals because they mask the expression of the recessive trait.
What is the difference dominant and recessive trait?
Dominant traits are the traits that mask the recessive traits. The dominant traits are stronger than recessive!
When two recessive alleles are inherited the trait is observed?
When two recessive alleles are inherited, the trait associated with those alleles is observed because there is no dominant allele to mask its expression. This results in the individual displaying the recessive trait.
When is the only time a recessive phenotype can be observed?
A recessive phenotype can only be observed when an individual is homozygous recessive for that trait, meaning they have two copies of the recessive allele. This is because in a heterozygous individual, the dominant allele will mask the expression of the recessive allele.
What happens if an organism has two factors for a domintnat trait?
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.
What is one question about how traits are expressed when an organism has heterozygous alleles for a trait?
One question could be: How does the dominant allele in a heterozygous genotype mask the expression of the recessive allele in the phenotype of an organism?
What kind of allele must an organism inherit in order for a recessive trait to show up?
Neither of the parents will be affected. There may not be any one with he disease in either of the parents families (or there might be). Since each parent is a carrier and has a 50/50 chance of passing one copy of the gene to each child 1/4 of the children will not get the gene, 1/2 will be carriers (1 copy) and 1/4 wil be affected (2 copies).
Why are two recessive alleles needed for a recesssive trait to be shown?
bcoz in case of one dominant and one recessive, dominant allele will express its characters and suppresses the recessive ones. so for the expression of recessive characters both allele should be recessive.
What is a trait that is expressed even if only one gene for that form of the trait is inherited?
It is a dominant trait. You only need one gene of a dominant trait for that trait to be expressed. You need two copies of the recessive trait in order for the trait to be expressed.
The form of a trait that appears to mask another form the same trait is called what?
The form of a trait that appears to mask another form of the same trait is called the dominant trait. Dominant traits will be expressed over recessive traits in a heterozygous individual.
