a specific portion of DNA that codes for a particular protein

the genetic makeup of an organism (the alleles an organism has)

made up by the physical characteristics coded for by the genotype

Which ones are homozygous dominant genotypes?

Which ones are heterozygous genotypes?

Which ones will show dominant phenotypes?

Which ones will show recessive phenotypes?

Having freckles is a dominant trait in humans.  A girl has freckles, but her brother does not. What do we know for certain about the parents?

In humans, freckles (F) on the skin are dominant to no freckles (f).  If a heterozygous parent and a recessive parent conceive, what is the chances of having a child with NO FRECKLES?

In the problem shown, what must the genotype of the missing parent be?

In pea plants, tall (T) is dominant over short (t). If two heterozygous tall pea plants are mated, what is the the expected genotypic ratio of their offspring?

Cross 2 heterozygous tall pea plants. Tall (T) is dominant to short (t). What fraction of the offspring do you predict will be tall?

Genotype: TT

T = tall and t = short

What genotype belongs in the missing box of the Punnett square?

What allele combination should go in the missing box of the Punnett square?

What are the chances that the offspring will have the homozygous recessive genotype?

How many boxes in the Punnet square would have the genotype BB?

Based on the information in the Punnett square, what is the dominant trait?