What is homozygous and heterozygous for kids?

Homozygous: You inherit the same version of the gene from each parent, so you have two matching genes. Heterozygous: You inherit a different version of a gene from each parent. They do not match.

What is homozygous definition kid?

The definition of homozygous is when a cell has two identical copies of a gene. An example of homozygous is a cell containing blue eye genes from both parents. … Having the same alleles at a particular gene locus on homologous chromosomes.

What are homozygous and heterozygous examples?

Homozygous means that the organism has two copies of the same allele for a gene. … Heterozygous means that an organism has two different alleles of a gene. For example, pea plants can have red flowers and either be homozygous dominant (red-red), or heterozygous (red-white).

What is an example of heterozygous?

Your genes are made of DNA. … 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.

What is the best definition for homozygous?

: having the two genes at corresponding loci on homologous chromosomes identical for one or more loci.

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What is an example of 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.

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.

Are blue eyes homozygous?

The homozygous blue-eyed parent can only pass down a blue allele. The heterozygous brown-eyed parent can pass down a blue allele or a brown allele. … Similarly, the children who inherit two blue alleles, i.e., a blue-blue genotype, will have a blue-eye phenotype and have blue eyes.

Is BB homozygous or heterozygous?

An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. Using the eye color example, this genotype is written BB. 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.

Are males heterozygous or homozygous?

So the correct answer is ‘they cannot be either homozygous or heterozygous for sex-linked genes’.

How do you say the word homozygous?

Also ho·mo·zy·got·ic [hoh-moh-zahy-got-ik, hom-oh-].

What is a homozygous organism?

biology. Homozygote, an organism with identical pairs of genes (or alleles) for a specific trait. If both of the two gametes (sex cells) that fuse during fertilization carry the same form of the gene for a specific trait, the organism is said to be homozygous for that trait.

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