What is the defenition of heterozygous and homozygous?

Heterozygous refers to having inherited different forms of a particular gene from each parent. A heterozygous genotype stands in contrast to a homozygous genotype, where an individual inherits identical forms of a particular gene from each parent.

1. What is a simple definition of homozygous?
2. What is the best definition of homozygous?
3. What is an example of a heterozygous?
4. What do you mean by heterozygous?
5. What is homozygous example?
6. What is an example of homozygous genotype?
7. What is allele example?
8. What is the difference between heterozygous and heterozygote?
9. Which is a phenotype?
10. What is the phenotype of a heterozygote?
11. What is meant by epistasis?
12. What is an allele symbol?
13. Is eye color an allele?

What is a simple definition of homozygous?

(HOH-moh-ZY-gus JEE-noh-tipe) The presence of two identical alleles at a particular gene locus. A homozygous genotype may include two normal alleles or two alleles that have the same variant.

What is the best definition of homozygous?

= Homozygous is a genetic condition where an individual inherits the same alleles for a particular gene from both parents.

What is an example of a heterozygous?

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 do you mean by heterozygous?

(HEH-teh-roh-ZY-gus JEE-noh-tipe) The presence of two different alleles at a particular gene locus. A heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles (compound heterozygote).

What is homozygous example?

If an organism has two copies of the same allele, for example AA or aa, it is homozygous for that trait. If the organism has one copy of two different alleles, for example Aa, it is heterozygous.

What is an example of homozygous genotype?

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 is allele example?

Alleles are different forms of the same gene. ... An example of alleles for flower color in pea plants are the dominant purple allele, and the recessive white allele; for height they are the dominant tall allele and recessive short allele; for pea color, they are the dominant yellow allele and recessive green allele.

What is the difference between heterozygous and heterozygote?

Heterozygous. A diploid organism is heterozygous at a gene locus when its cells contain two different alleles (one wild-type allele and one mutant allele) of a gene. The cell or organism is called a heterozygote specifically for the allele in question, and therefore, heterozygosity refers to a specific genotype.

Which is a phenotype?

A phenotype is an individual's observable traits, such as height, eye color, and blood type. The genetic contribution to the phenotype is called the genotype. Some traits are largely determined by the genotype, while other traits are largely determined by environmental factors.

What is the phenotype of a heterozygote?

Heterozygous individuals have a phenotype somewhere in the middle, what people might call “wavy” hair. In a heterozygous individual, only one curly allele is present, and only half the amount of protein can be made. This causes the hair to be about as half as curly as in a homozygous curly individual.

What is meant by epistasis?

Epistasis is a phenomenon in genetics in which the effect of a gene mutation is dependent on the presence or absence of mutations in one or more other genes, respectively termed modifier genes. ... Originally, the term epistasis specifically meant that the effect of a gene variant is masked by that of a different gene.

What is an allele symbol?

As used in MGI, an allele symbol is a unique abbreviation for the allele name. Allele symbols take the form of superscripts added to the gene symbol. See also: Allele Name. Gene Name.

Is eye color an allele?

Eye color is not an example of a simple genetic trait, and blue eyes are not determined by a recessive allele at one gene. Instead, eye color is determined by variation at several different genes and the interactions between them, and this makes it possible for two blue-eyed parents to have brown-eyed children.