You asked: What are the two genotypes that are considered homozygous?

A homozygous genotype is one in which both alleles are the same, and an organism with a homozygous genotype is said to be true-breeding or purebred. … For example, in pea plants, height is governed by a single gene with two alleles, in which the tall allele (T) is dominant and the short allele (t) is recessive.

What are the genotypes for homozygous?

A homozygous genotype means that you have two of the same alleles, which are represented by the letters A or a. So if an individual has AA or aa, we say they are homozygous. If that have Aa, they are heterozyous.

Is TT genotype homozygous?

When an organism has two of the same alleles for a specific gene, it is homozygous (homo means “same”) for that gene.

Genotype and Phenotype.

Genotype Definition Example
Heterozygous One dominant allele and one recessive allele Tt
Homozygous dominant Two dominant alleles TT
Homozygous recessive Two recessive alleles tt

Is AA heterozygous or homozygous?

Two dominant alleles (AA) or two recessive alleles (aa) are homozygous. One dominant allele and one recessive allele (Aa) is heterozygous.

What is a homozygous genotype example?

A homozygous genotype is one in which both alleles are the same, and an organism with a homozygous genotype is said to be true-breeding or purebred. … For example, in pea plants, height is governed by a single gene with two alleles, in which the tall allele (T) is dominant and the short allele (t) is recessive.

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Is homozygous purebred?

Purebred – Also called HOMOZYGOUS and consists of gene pairs with genes that are the SAME. Hybrid – Also called HETEROZYGOUS and consists of gene pairs that are DIFFERENT. Genotype is the actual GENE makeup represented by LETTERS.

What are the 3 types of genotypes?

There are three types of genotypes: homozygous dominant, homozygous recessive, and hetrozygous.

What is another name for heterozygous genotype?

In this page you can discover 11 synonyms, antonyms, idiomatic expressions, and related words for heterozygous, like: homozygous, genotype, allele, recessive, MTHFR, C282Y, rb1, heterozygote, premutation, wild-type and homozygote.

What is a heterozygous genotype letters?

Heterozygous always means one of each letter, so we’d use “Tt” (where “T” = tall, & “t” = short). The only way for a pea plant to be short is when it has 2 lowercase “t’s”, so that short parent is “tt”.

What is a heterozygous mutation?

A mutation affecting only one allele is called heterozygous. A homozygous mutation is the presence of the identical mutation on both alleles of a specific gene. However, when both alleles of a gene harbor mutations, but the mutations are different, these mutations are called compound heterozygous.

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