in pigeons the checkered pattern is caused by a dominant allele.A plain (non checkered ) pattern is recessive.red colour is also caused by a dominant allele and brown colour by a recessive allele. ​a. show the expected offspring of a cross between a homozygous checkered red bird and a plain brown one. carry out this cross through the f2 generation. ​b.carry out to the f2 generation a cross between a homozygous plain red bird and its homozygous checkered brown mate.

Dear Student,

Please find below the solution to the asked query:

Lets Us first write the specific genes and their phenotypes

A - Checkered pattern
a -  Plain

R- Red colour
r - brown colour

Now we have to cross between homozygous checkered red and homozygous plain brown
 the genotype of both will be  AARR and aarr respectively.

if we cross then F1 generation has genotype as AaRr . if we cross it further for F2 generation we get





Case II

Now we have to cross between homozygous checkered brown and homozygous plain red
 the genotype of both will be  AArr and aaRR respectively.

if we cross then F1 generation has genotype as AaRr . if we cross it further for F2 generation we get​


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