An individual who is heterozygous for freckles would have which PHENOTYPE? In humans, the allele for freckles is dominant (F) and the allele for no freckles is recessive (f). … two alleles of a gene separate during gamete formation such that every gamete receives only one allele.
What is the genotype of an individual with freckles?
Possible genotypes for their red hair (recessive trait) and freckles (dominant trait) are: rr only for red hair and Ff or FF for freckles.
What is the genotype of a person that is heterozygous for freckles?
The allele for freckles is dominant and represented by the capital letter F. … So their genotype will be represented by one uppercase F for the dominant allele and one lowercase f for the recessive. This also means that both these heterozygous parents have freckles since they both possess one dominant allele.
What is the genotype of a heterozygous individual?
An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype. In our example, this genotype is written Bb. Finally, the genotype of an organism with two recessive alleles is called homozygous recessive. In the eye color example, this genotype is written bb.
Are freckles heterozygous?
Freckles (F) are a dominant trait. The Punnett square for a non-freckled parent and a heterozygous freckled parent is shown.
What is the genotype of a person without freckles blank word answer?
In humans, the allele for freckles is dominant (F) and the allele for no freckles is recessive (f).
What is heterozygous example?
If the two versions are different, you have a heterozygous genotype for that gene. For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair. The relationship between the two alleles affects which traits are expressed.
What is genotype EE?
The person with the Ee genotype is heterozygous for the trait, in this case, free earlobes. An individual is heterozygous for a trait when it has two different allelic forms of a particular gene. The heterozygous individual received one form of the gene from one parent and a different allele from the other parent.
What is the genotype of a carrier?
What is the genotype of a carrier? The genotype of the carrier is Ff (one dominant non-disease gene, F, and one recessive, CF gene, f). Of course, any letter of the alphabet could be used as long as it is expressed as a heterozygous genotype.
Is BB heterozygous or homozygous?
An individual that contains two copies of the same allele for a specific gene is homozygous. An individual that contains two different alleles of a gene is heterozygous. A cow that has two alleles for a red coat is homozygous (bb). A bull with two alleles for a black coat is homozygous (BB).
What is a genotype of an individual?
A genotype is an individual’s collection of genes. The term also can refer to the two alleles inherited for a particular gene. … The expression of the genotype contributes to the individual’s observable traits, called the phenotype.
What is the genotype and phenotype of a heterozygous individual?
A heterozygous individual is a diploid organism with two alleles, each of a different type. … Heterozygous is a description of the genotype, or combination of alleles present in an organism. The genotype gives rise to the phenotype.
What are the 3 types of genotypes?
There are three types of genotypes: homozygous dominant, homozygous recessive, and hetrozygous.
How does a freckle form?
Freckles are small brown spots on your skin, often in areas that get sun exposure. In most cases, freckles are harmless. They form as a result of overproduction of melanin, which is responsible for skin and hair color (pigmentation). Overall, freckles come from ultraviolet (UV) radiation stimulation.
Can someone have freckles and unattached earlobes?
In humans, having freckles is dominant over no freckles, and having unattached earlobes is dominant over attached earlobes. … If an individual is homozygous dominant for both traits and is crossed with a homozygous recessive individual for both traits, what is the ratio of traits in their offspring?
Is freckles a recessive trait?
This trait is reportedly due to a single gene; the presence of freckles is dominant, the absence of freckles is recessive1. Early geneticists reported that curly hair was dominant and straight hair was recessive. More recent scientists believe that more than one gene may be involved.