Mendel's Laws of Inheritance

Flashcards about Mendel's Laws of Inheritance

Principle of Dominance

In hybrid, plants are heterozygous; a single trait is controlled by two contrasting alleles where only one expresses its character and suppresses the other; the expressed one is dominant, the suppressed is recessive.

Principle of Dominance

One factor in a heterozygous pair may mask the expression of the other.

Law of Segregation (First Law of Inheritance)

Two contrasting allele factors of a character remain together in a heterozygote individual but do not get mixed up; they segregate out at gamete formation, so a gamete possesses only one out of two alleles.

Law of Independent Assortment (Second Law of Inheritance)

Different characters located in different pairs of chromosomes are independent of one another during gamete formation and assort themselves independently at random and freely.

Interaction of genes

The process by which the expression of two or more genes influences one another in different ways as an organism develops a single characteristic

Incomplete Dominance

None of the pure parental character is expressed in F1, but F1 is intermediate in character between both the parents.

Co-dominance

Both the characters of parents are equally dominant and express completely in F1 generation.

Multiple Allelism

If there are three or more than three alleles controlling one character of an organism.