0
In humans the allele for free hanging earlobes is dominant over the one for attached earlobes What are the possible genotypes of a person with free hanging earlobes?
Wiki User
∙ 14y ago
50%. Heterozygous means that there is two different traits inside of the gene. Therefore you have (aa) for the free earlobes and the other individual with attached (Aa). Drawing a Punnett square you get (aa) in two different spots, creating 50% probability.
Wiki User
∙ 9y ago
Wiki User
∙ 11y agoAttached earlobes are recessive to free earlobes. What genotypic ratio is expected when an individual with attached earlobes mates with an individual heterozygous for free earlobes?
1:1
Wiki User
∙ 10y agoMendel would call this a cross of Fa x aa which would yield Fa Fa AA AA or 2 attached and 2 heterozygous free. The ratio is then 1/1 for free to attached.
Wiki User
∙ 14y agoFF Ff or what ever letter symblizises the question
Add your answer:
Earn +20 pts
What two type genotypes are possible for a person who as A blood?
Blood typePossible genotypesAAA AOBBB BOBlood typePossible genotypesABABOOO
Is it possible to have attached earlobes if both of your parents have unattached earlobes?
Yes it is your possibility if the parents were both heterozygous(having different alleles) or hybrid with Aa and Aa, the genotypic ratio would be 1:2:1 so if you put it in a punnet square there is a 25% chance of AA, 50% chance of Aa and 25% chance of aa.
What is the name of the chart that shows possible phenotypes and genotypes and genotypes?
punnet square
What are the possible genotypes of the offspring from the cross ABOVE?
these nutz
What do the letters inside the punnent square stand for?
The letters on the outside are the genotypes of two parents. Inside are the possible genotypes of possible offspring of the two
What is the phenotype of a man who has 2 parents with free hanging earlobes if one parent is homozygous and the other parent is heteroygous... what are his possible genotypes?
The possible genotypes HH and Hh. 50% homozygous for hanging earlobes (HH), and 50% heterozygous for hanging earlobes (Hh).
In pea plants the allele for a tallness is dominant what are the possible genotypes of a tall pea plant?
TT or Tt
Why isn't it possible to have more genotypes than phenotypes?
I think you have the question backwards, "Why isn't it possible to have more phenotypes than genotypes?" There are always more or an equal number of genotypes relative to phenotypes. The phenotype for a simple dominant/recessive interaction (for example) T for tall and t for short where TT is tall, Tt is tall and tt is short has three genotypes and two phenotypes. If T and t are co-dominant then TT would be tall, Tt would be intermediate and tt would be short. (Three phenotypes and three genotypes.)
What are the possible genotypes of pea plants?
Either TT or Tt, where T stands for dominant gene for tallness and t for recessive gene.
What two type genotypes are possible for a person who as A blood?
Blood typePossible genotypesAAA AOBBB BOBlood typePossible genotypesABABOOO
What polygenic trait can have many possible genotypes and -?
Many possible genotypes, producing ,any possible phenotypes.
What are the possible genotypes for dwarfism?
There are many types of dwarfism. Acondroplastic dwarfism is a dominant trait. Living individuals are heterozygous for the trait as a homozygous dominant individuals have substantial skeletal anomalies that result in death in infancy.
A girl is a hemophiliac whose mother is normal what are the genotypes of her parents?
not possible. if the mother is normal she must have normal genes which are dominant. do you mean if athe mother is a carrier?
Is it possible to have attached earlobes if both of your parents have unattached earlobes?
Yes it is your possibility if the parents were both heterozygous(having different alleles) or hybrid with Aa and Aa, the genotypic ratio would be 1:2:1 so if you put it in a punnet square there is a 25% chance of AA, 50% chance of Aa and 25% chance of aa.
Is a helpful device for predicting the proportions of possible genotypes?
A Punnett Square is a helpful device for predicting the proportions of possible genotypes
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.
What gene is masked if it is paired with a dominant gene?
The different forms of a gene are called alleles. In Mendelian genetics, a gene has a dominant allele and a recessive allele. The dominant allele masks the recessive allele if present. So there are two possible dominant genotypes: homozygous dominant, in which both dominant alleles are present; and heterozygous, in which one allele is dominant and the other allele is recessive. The only way to express a recessive trait is to have the homozygous recessive genotype.
