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Could 2 people with a widows peak have a child with a straight hairline and could 2 people with a straight hairline have a child with a widows peak EXPLAIN?
Wiki User
∙ 15y ago
Yes to the first one, no to the second one. Firstly, widow's peak is caused by a dominant gene while a straight hairline is caused by a recessive gene. Let 'H' be dominant and 'h' be recessive. So for a dominant gene, the trait still will be expressed whether the genotype of the person is homozygous dominant(HH) or heterozygous(Hh). For a recessive gene however, the trait will only be expressed when the genotype of the person is homozygous recessive (hh). So two people with a widow's peak CAN have a child with a stright hairline, provided both of their genotypes are Hh. This is because by crossing their genotypes, they can have a possibility of having child with the genotype HH(widow's peak), Hh(widow's peak), and also hh(straight hairline). The ratio of these three possibilities however, are 1:2:1. So the odds of having a child with a straight hairline in this case is 1:3. If the two people who have widow's peak have the genotype HH or one of them HH and the other Hh, then the possibility of having a child with a straight hairline is 0. This is because by crossing their genotypes together, the genotype of the child will either be HH for the first case, and HH or Hh for the second case. For two people who have a straight hairline, the genotype of both will definitely be homozygous recessive (hh), thus child will definitely have the recessive gene. Therefore, it is not possible for two people with straight hairline to have a child with widow's peak.
Wiki User
∙ 15y ago
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What animals eat black widows?
Only certain animals eat black widows. Certain birds,such as wrens, lizards, such as alligator lizards, frogs, larger spiders, and other bugs, such as the praying mantis' eat them.
What kind of damage can a tornado do to an area?
A tornado can do all sorts of damage...from just shattering the widows and ripping off the roof to completely distroying and area.And it also depends on how many tornados there are!!
What spider is native to Maryland that is considered poisonous?
Well, first of all, the correct term is venomous, but that is not that important. All spiders are venomous. Some very dangerous ones native to Maryland are the brown recluse and the black widow (yes, it does live around here, but you will most likely not see one around the house). So to answer your question, all Maryland spiders are venomous, just some are more dangerous than others. Most that you would see around here or in your house are relatively harmless (it might hurt to be bitten by one, but it probably won't do any significant damage).Black widows, and brown recluse' are the only spiders in Maryland, and America that are fetal to humans. all the other spiders are either harmless to humans or a little dangerous
What is dominant and recessive allele?
A dominant allele is an allele where its phenotype will always be represented when the allele for that gene is present. A recessive allele can be masked by a dominant allele when a dominant and recessive allele are present for the same gene. A recessive allele will only present itself when two recessive alleles for a trait are present.
In humans widows peak w is dominant over straight hairline w if a heterozygous male marries a female with a straight hairline what percent of their children can be expected to have a widows peak?
According to Mendelian genetics, if the male is heterozygous for the widows peak trait (Ww) and the female has a straight hairline (ww), 50% of their children are expected to have a widows peak (Ww) and the remaining 50% of their children are expected to have a straight hairline (ww).
Where is Widows Peak located on a map?
Widow's Peak is a term used to describe a V-shaped point in the hairline at the center of the forehead. It is a physical feature on a person's head, not a geographical location that can be pinpointed on a map.
How can two parents with a dominant trait like a widow's peak have a child with a recessive straight hairline?
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.
Is a curved hairline a widows peak?
No, a widows peak is when the front of your hair is in a V shape, receding hairlines create "widow's peak"
Do people with a widows peak have any special gifts or can they foresee things?
People with Widow's Peaks aren't different in any way except that their hairline is different
What One recessive and one dominate allele?
A dominant allele could be right handedness, or a straight hairline. A recessive allele could be freckles, a widows peak, clef chin, or left handedness.
How common is a widows peak?
Widow's peak is a V-shaped point in the middle of the hairline (above the forehead) ((:
What is a witches peak?
I'm not sure. But widows peak is the little v-shaped hair part coming down on someone hairline. Although not everyone has one I'm pretty sure you mean a widow's peak, which is a dominant gene that gives you a peak of hair on your hairline on your forehead. It sometimes gives a slightly vampirish look to people. It also can be exaggerated by hair loss.
Can you get rid of widows peak?
yes you can but it's very hard to. you could get it surgically removed by laser or other forms of plastic surgery. you could shave up to the tip where your hairline becomes straight and then pluck out the remaining hairs. although you will have to wax it often. it will be very annoying, so just leave it alone. bangs could help hide it. but i bet you are beautiful!!! and you don't need to get rid of it!
What is a trait controlled by a single gene that has two alleles?
widows peaks,straight hair,colored hair
What Nationality of people has a dominant gene for widows peak?
sweeden
How many people are retired from the military in America?
20 million including widows.
