Which of the following conditions represents a case of co-dominant genes?

A gene expresses itself, suppressing the phenotypic effect of its alleles

Genes that are similar in phenotypic effect when present separately, but when together interact to produce a different trait

Alleles, both of which interact to produce a trait, which may or may not resemble either of the parental types

Alleles, each of which produces an independent effect in a heterozygous condition

Solution

Alleles, each of which produces an independent effect in a heterozygous condition

Co-dominance is the phenomenon when the two genes neither show dominant-recessive relationship nor show intermediate condition, but both of them express themselves simultaneously. Eg, Patches of two different colours on the skin.

Some More Questions From Principles of Inheritance and Variation Chapter

Write the genotypes of man with blood group A.

What is Mendel’s monohybrid phenotypic ratio ?

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Principles Of Inheritance And Variation

Some More Questions From Principles of Inheritance and Variation Chapter

Write the genotypes of man with blood group A.

What is Mendel’s monohybrid phenotypic ratio ?

Write down Mendel’s dihybrid Phenotypic ratio

Who were the rediscoverers of Mendelism ?

What are the real determinants of what an organism will become ?

What is the unique feature of F1 generation ?

What will be the genetic make up of an organism which suffers from sickle cell anaemia ?

What do the symbols square and circle in a pedigree chart indicate ?

Define heterogamy. Give an example.

How many chromosomes are found in human cells ?

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