Black fur in mice (B) is dominant to brown fur (b). Short tails (T) are dominant to long tails (t). What fraction of the offspring of the cross BbTt × BBtt will have black fur and long tails? _____

What will be the phenotypic ratio of the offspring of a purebreed male fly with eosin eyes (CCXw-eY) mated to a red-eyed female who is heterozygous for both the cream (C) and eosin eyes (Xw-e) allele.

Black coat Brown coat A heterozygous dog with a black coat (C¹C2) is crossed with a heterozygous dog with a yellow coat (C³C2). Determine the phenotypic ratio of offspring produced Yellow coat In a particular breed of dog, the following genotypes and their respective phenotypes are known: Record your 3 digits answer accordingly: • C'C- black coat • C'C²= black coat • C²C²-brown coat • C'C'=yellow coat • C'C²=yellow coat • C'C'=yellow coat

The image shows a pair of homologous chromosomes from a single parent before gamete production. M1 and M2 are maternal chromosomes, while P1 and P2 are paternal chromosomes. Two traits are shown: D represents seed color (D – green, d – yellow), while F represents flower color (F – purple, f – white). These two traits follow the patterns of basic Mendelian genetics. During crossing-over between the M2 F allele and the P1 f allele, a mutation occurred and the portion of P1 did not reattach to the chromosome. Which of the following explains what would happen to the proportion of white flowers in a population resulting from this mutation? A - There would be an increase in the proportion of white flowers because the f allele is distributed to more gametes. B - There would be a decrease in the proportion of white flowers because the f allele is not distributed to as many gametes. C - There would be an increase in the proportion of white flowers because the f allele would not be masked by the…