Look at the punnett square obtained by the monohybrid cross between two rabbits.  r r r rr rr r rr rr here,  r  represents the allele for black hair and    r  represents the allele for white hair. both rabbits crossed had genotype  rr.    what will be the phenotypic ratio for the observable monohybrid crosses?   a.    1: 1: 1: 1  b.    2: 2  c.    2: 1: 1  d.    3: 1