Background Information:
Selective breeding is a tool that has been used for many years to create favorable characteristics in living organisms. Humans have domesticated animals for thousands of years for different purposes, using selective breeding. By crossing different breeds of the same species, they have been able to create animals that are optimized for working, protection, and consumption. One species in particular is the domesticated dog, or Canis domesticus, which is the product of selective breeding of wolves. Sometimes selective breeding is done simply for appearance (e.g., color of fur or coat).

Using basic Mendelian genetics can help one determine the probability of offspring expressing specific traits. Although nothing is guaranteed, using this probability can determine the chances of favorable characteristics being expressed. Genotypes can be used to calculate the probability of a specific trait being expressed through the use of a monohybrid cross. Each genotype can then be calculated to determine a traits phenotype-what it looks like or what trait is expressed.

If a trait has a dominant allele in its genotype, that trait will be expressed. If a trait has a recessive allele in its genotype, that trait may possibly not be expressed. In order for a recessive trait to be expressed, both alleles in the genotype must be present. This genotype is called "homozygous recessive."

Male Rabbit: brown coat (Cc); lop ears (ee)
Female Rabbit: orange coat (cc); erect ears (Ee)

complete the punnet square:

possible gamates
Ce _ ce _ _
cE _ _ _ _
ce _ _ _ _
_ _ _ _ ccEe
ce _ _ _ _