In mice, black coat color is dominant to white coat color. in the pedigree below, mice with a black coat are represented by darkened symbols, and those with white coats are shown as open symbols. part a using allele symbols b and b, determine the genotypes for each mouse.

Blood, made up of red and white blood cells, work together to form

Which statement best describes the relationship between an allele and a gene? question 1 a. an allele is a variation of a gene that can be expressed as a phenotype. b. an allele is the part of a gene that attaches to messenger rna molecules. c. an allele is a segment of a dna molecule that controls replication of a gene.

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?