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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?
Wiki User
∙ 15y ago
50 % the punnet square should result in Ww, and ww. there is a 50% chance that one person will receive the dominant trait, Widows peak, and 50% that one will get straight
Wiki User
∙ 15y ago
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).
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How do you make your hairline lower?
Hairline lowering surgery, also known as forehead reduction surgery, involves surgically lowering the hairline to create a more aesthetically pleasing appearance. It is typically performed by a qualified plastic surgeon and involves removing a strip of skin from the forehead and moving the hairline down. It is a permanent procedure that requires careful consideration and consultation with a specialist.
How many people in the world have a straight hairline?
It is difficult to provide an exact number, but straight hairlines are less common compared to other types of hairlines such as widow's peak or receding. Straight hairlines are considered a genetic trait and can vary in prevalence based on ethnic backgrounds and individual genetics.
In humans widow's 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 widow's peak?
50% of their children are expected to have a widow's peak. When a heterozygous male (Ww) with a widow's peak gene marries a female with a straight hairline (ww), their offspring have a 50% chance of inheriting the widow's peak gene from the father.
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?
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.
Can someone give you a List of dominant or recessive personality traits?
1. Shape of face (probably polygenic) Oval dominant, square recessive 2. Cleft in chin No cleft dominant, cleft recessive 3. Hair curl (probably polygenic) Assume incomplete dominance Curly: homozygous Wavy: heterozygous Straight: homozygous 4. Hairline Widow peak dominant, straight hairline recessive 5. Eyebrow size Broad dominant, slender recessive 6. Eyebrow shape Separated dominant, joined recessive 7. Eyelash length Long dominant, short recessive 8. Dimples Dimples dominant, no dimples recessive 9. Earlobes Free lobe dominant, attached recessive 10. Eye shape Almond dominant, round recessive 11. Freckles Freckles dominant, no freckles recessive 12. Tongue rolling Roller dominant, nonroller recessive 13. Tongue folding Inability dominant, ability recessive 14. Finger mid-digital hair Hair dominant, no hair recessive 15. Hitch-hiker's thumb Straight thumb dominant, hitch-hiker thumb recessive 16. Bent little finger Bent dominant, straight recessive 17. Interlaced fingers Left thumb over right dominant, right over left recessive 18. Hair on back of hand Hair dominant, no hair recessive 19. Tendons of Palmar Muscle Two tendons dominant, three tendons recessive
Predict what genotype the children will have if one parent is homozygous recessive for earlobes and homozygous dominant for hairline (eeWW) and the other parent is homozygous dominant for unattached earlobes and homozygous recessive for hairline (EEww )?
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.
Both parents are heterozygous widows peak is dominant over straight hair what kind of hairline would offspring have?
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).
Why are a window's peak considered a single gene trait?
A widow's peak is a dominant trait, so even if a person has both the widow's peak and the straight hairline trait, only the widow's peak will be visibly apparent.
If AA is dominant for a widow's peak and if a child is born without a widow's peak what is his phenotype?
The Phenotype would be a straight hairline. The genotype would be aa.
When was Hairline Cracks created?
Hairline Cracks was created in 1990.
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.
What can you do if your barber cuts your hairline back to far?
If it is cut above the hairline u have to taper it. Bring it in shorter or the hairline looks ridiculous.
Is hairline one word?
Yes, I believe that hairline is one word.
What is the medical term meaning hairline fracture?
A hairline fracture is a nondisplaced fracture.
