Yes, because they can carry the trait from their parents.
You would need to look at the grandparents on both sides. If one grandparent on the maternal and one on paternal side had a widows peak then the parents could both be a carrier to the widow peak gene (wW), meaning they could produce a child with a widows peak. However, if both the maternal and or paternal grandparents lack a widows peak then it is impossible for a grandchild to have a widows peak because both parents would be recessive ww (straight hairline).
When attempting to figure out genetics it is best to observe three generations for family genetic traits. However, when in doubt you should confirm with a paternity test.
Yes, but it depends on the parents genetics.
yes, because if one of their ancestors had a widows peak or straight hairline they can have it.
nipples
None. Since it is dominant, both would have to show it to pass in on. If both show it and both have the recessive (straight), the child would have a 3:1 chance of showing it.
No. Parents with the dominant phenotype might be heterozygous in their genotype. This means they could carry both the dominant and recessive allele for a trait. So they could both pass the recessive allele to an offspring, who would then have the homozygous recessive genotype and recessive phenotype.
If the phenotype is recessive then the genotype must be dd.
A dihybrid cross for the parental generation would look as follows: A a A AA Aa a Aa aa Indicating three different genotypes, AA, Aa and aa. These three genotypes would be expressed in two phenotypes: 75% of offspring would express the dominant widow's peak (AA and Aa), while 25% of offspring would express the recessive straight hairline (aa).
Homozygous means "same" so a homozygous recessive trait would be a same [with parents] trait that is not the stronger trait which is dominant. Dominant is stronger showing trait, recessive is weaker trait. If you are dealing with Punnett squares then tt is homozygous recessive and TT is homozygous dominant. Hope this helped...
A child inherits a quality if one its parents has the dominant gene for it.With a recessive characteristic, both parents have to have it.
None. Since it is dominant, both would have to show it to pass in on. If both show it and both have the recessive (straight), the child would have a 3:1 chance of showing it.
no, because dominant is different from recessive, its impossible to have a dominant-recessive trait because the dominant is when only one copy of the gene is present, while in the recessive a trait that must be contributed by both parents in order to appear in the offspring, in short the dominant is for single parent, while in the recessive is a product of two parents.
No. Parents with the dominant phenotype might be heterozygous in their genotype. This means they could carry both the dominant and recessive allele for a trait. So they could both pass the recessive allele to an offspring, who would then have the homozygous recessive genotype and recessive phenotype.
The two most straight forward ways are: - If both parents have the trait, and one of their children does not, it must be recessive. - If neither parent has the trait, and one of their children does, it must be dominant.
The only possible outcome is EeWw, which will express the dominant genes but carry the recessive ones. They get one chromosome from each parent, but since the parents all have matching chromsomes in this case then it doesn't matter which one they get. Since one parent has EE, E is the only one that can be passed on. Since the other has ee, they can only pass on e. Therefore, the child can only possible have Ee, as they get one from each parent.
It depends on the parents. The parent could have two dominant genes which would give a 0% chance of the offspring being recessive. The only way that the offspring could have a recessive characteristic is if the both parents have one dominant and one recessive gene, a 25% chance. The chance that both parents would pass on the recessive gene (if they have one dominant and recessive gene) is also 25%, because there is a 50% chance for each parent.
this is called codominance when alleles are neither dominant or recessive.
An offspring can inherit a recessive trait if both of its parents are homozygous for the dominant allele.
If the phenotype is recessive then the genotype must be dd.
A dihybrid cross for the parental generation would look as follows: A a A AA Aa a Aa aa Indicating three different genotypes, AA, Aa and aa. These three genotypes would be expressed in two phenotypes: 75% of offspring would express the dominant widow's peak (AA and Aa), while 25% of offspring would express the recessive straight hairline (aa).
Dominant and Recessive refer to different types of genes a child gains from its parents. In general, a dominant gene overpowers a recessive gene (like more people have brown eyes than blue eyes), but there are some cases where recessive genes are visible on a child over the dominant gene.