Mendel’s Law of Dominance- Definition, Examples, Limitations

Mendel’s Law of Dominance

Mendel’s Law of Dominance Definition Mendel’s Law of Dominance states that ‘In crossing between homozygous organisms for contrasting characters of a pair, only one character of the pair appears in the first generation.’ The law of dominance is the first law of heredity proposed from the works of Mendel. The law explains that all characters in an individual are controlled by distinct units called factors that occur in pairs. The pair can be homozygous or heterozygous, and in the case … Read more

Mendel’s Law of Independent Assortment- Definition, Examples, Limitations

Mendel's Law of Independent Assortment

Mendel’s Law of Independent Assortment Definition Mendel’s Law of Independent Assortment states that ‘when the parents differ from each other in two or more pairs of contrasting characters, the inheritance of one pair of characters is independent of the other.’ In simple words, the law states that all transfer of a particular character from parents to the offsprings remains unaffected by other characters. The law indicates that the alleles of different genes are assorted into the gametes independently of one another. … Read more

Mendel’s Law of Segregation- Definition, Examples, Limitations

Mendel's Law of Segregation

Mendel’s Law of Segregation Definition Mendel’s Law of Segregation states that ‘The hybrids or heterozygotes of F1 generation have two contrasting characters of dominant and recessive nature where the alleles though remain together for a long time do not contaminate or mix with each other and separate or segregate at the time of gametogenesis so that each gamete receives only one allele of a character either dominant or recessive.’ In simple words, the law states that only a single gene … Read more

Monohybrid Cross- Definition, Steps, Examples (vs Dihybrid Cross)

Monohybrid Cross

Monohybrid Cross Definition A Monohybrid cross is a type of genetic cross between two individuals with homozygous genotypes of a single character or trait, often resulting in an opposite phenotype. Monohybrid crosses are usually performed to determine the genotypes of offspring of homozygous individuals. The hybrid produced from this cross helps in the identification of the dominant genotype in the allele. Even though monohybrid crosses are often associated with homozygous genotypes, these are also used to determine the genetic mix … Read more