Difference Between Homozygous And Heterozygous
Difference Between Homozygous And Heterozygous is as follows:
|
Features |
Homozygous |
Heterozygous |
|---|---|---|
|
Definition |
Both alleles for a specific gene are identical, i.e., two dominant alleles (homozygous dominant) or two recessive alleles (homozygous recessive). |
Two different alleles for the same gene, typically one dominant and one recessive allele. |
|
Genetic Representation |
Represented by either two capital letters (e.g., AA or aa) |
Represented by one capital and one lowercase letter (e.g., Aa). |
|
Phenotype |
The expressed trait is solely determined by the alleles present. For homozygous individuals, it’s either the dominant trait (homozygous dominant) or the recessive trait (homozygous recessive). |
The dominant allele typically determines the expressed trait, masking the expression of the recessive allele. |
|
Examples |
AA (homozygous dominant) and aa (homozygous recessive) |
Aa (heterozygous) |
|
Inheritance |
Homozygous crosses produce offspring with the same genotype and phenotype as the parent. |
Heterozygous crosses can produce offspring with a 3:1 ratio of phenotypes, following Mendel’s laws of inheritance. |
Difference Between Homozygous And Heterozygous
Homozygous and heterozygous are terms used in genetics to describe the types of alleles an individual possesses for a particular gene. A homozygous individual carries two identical alleles(RR or rr) for a specific gene while a heterozygous individual carries two different alleles(Rr) for a specific gene. The concepts of homozygous and heterozygous genotypes are fundamental in explaining the inheritance patterns of traits as described by Gregor Mendel.
Table of Content
- Difference Between Homozygous And Heterozygous
- Homozygous
- Heterozygous
- FAQs on Homozygous And Heterozygous
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