Is TT a homozygous?

Is TT a homozygous genotype?

The genotype is represented by letter combinations, such as TT, Tt, and tt. When an organism has two of the same alleles for a specific gene, it is homozygous (homo means “same”) for that gene. An organism can be either homozygous dominant (TT) or homozygous recessive (tt). … The genotype expresses the phenotype.

What is phenotype of TT?

The phenotype of a plant with the genotype Tt would be tall. Here tallness (T) is a dominant trait over dwarfness (t), which is recessive. Tallness and dwarfness (stem height) are one of the seven contrasting pairs of traits in pea plants studied by Mendel.

What is TT allele?

The notation Tt means the heterozygous condition, wherein the homologous pair contains different alleles of a gene. One homologous chromosome possesses the dominant allele and the other chromosome possesses the recessive allele present for a gene.

What is an example of a homozygous?

Homozygous examples

You can have brown eyes whether you’re homozygous (two alleles for brown eyes) or heterozygous (one for brown and one for blue). This is unlike the allele for blue eyes, which is recessive. You need two identical blue eye alleles in order to have blue eyes.

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Is homozygous a phenotype?

A homozygous phenotype is the product of two identical genes.

How are the plant height genotypes TT and TT similar?

Tallness is the recessive trait for plant height; therefore, the genotypes with Tt and TT would have the same phenotype. … Tallness is a recessive trait in pea plants. C. Tallness is the dominant trait for plant height; therefore, the genotypes with Tt and TT would have the same phenotype.

Why is a plant with genotype TT referred to as heterozygous?

Answer: because it has two different allele.

What’s an organism’s genotype?

In a broad sense, the term “genotype” refers to the genetic makeup of an organism; in other words, it describes an organism’s complete set of genes. … A particular genotype is described as homozygous if it features two identical alleles and as heterozygous if the two alleles differ.

What is the result of a cross between TT and TT?

A monohybrid cross is a hybrid of two individuals having homozygous genotype which results in the opposite phenotype. In this TT× tt cross, the dominant trait is the one that appears in the phenotype, so all the offspring will be tall. All four offspring will have a Tt genotype.