1. Name________________________________________
Exit Ticket Q2W5
Lesson 16
Part I Vocabulary- use each vocab word in a sentence. This
is not the definition but a well -crafted reasonable sentence
for each. You may use a genotype to illustrate your answer
for 4, 5, and 6.
1. Allele
2. Genotype
3. Phenotype
4. Homozygous dominant
5. Homozygous recessive

2. 6. Heterozygous
7. Trait
Part II- Crosses: Monohybrid crosses:
8. In frogs blue skin is recessive and green skin is dominant. Cross a
heterozygous green frog with a homozygous recessive one. What are the
offspring?
Show your work:
Parent’s genotypes: _______ x________
Part III Optional: Challenge: Dihybrid cross-
2. In chinchillas brown fur is dominant over white. In addition lean body type is
recessive to chunky. Cross a chinchilla heterozygous for both brown fur and
chunky body style with a lean white chinchilla.

3. Step 1: Identify your alleles: Brown fur, white fur, chunky or lean
Step 2: get the parents genotypes: ___________x__________
Step 3: Perform the cross below
Sperm
Eggs
Phenotypic ratio: