1. Genetics Crosses Ch. 9.2 (p.172-178)
Genotype = the genetic makeup of an organism (the genes you have)
The alleles inherited from the parents for each trait
This includes both dominant and recessive alleles
T = allele for smooth texture seed ; t = allele for wrinkled texture
Suggest abbreviations for the following traits:
Widow’s Peak Hairline (dominant) = _____
Strait Hairline (recessive) = _____

2. Genetics Crosses Ch. 9.2 (p.172-178)
Genotype = the genetic makeup of an organism (the genes you have)
The alleles inherited from the parents for each trait
This includes both dominant and recessive alleles
T = allele for smooth texture seed ; t = allele for wrinkled texture
Suggest abbreviations for the following traits:
Widow’s Peak Hairline (dominant) = _W_
Strait Hairline (recessive) = __w_

3. Genetics Crosses Ch. 9.2 (p.172-178)
Phenotype = the physical expression of the genes, or what the organism looks like
Dominant allele always expressed (written as CAPITAL LETTER)
Recessive allele only expressed if no dominant to block it (lowercase letter)

4. Genetics Crosses Ch. 9.2 (p.172-178)
Homozygous = Both alleles for a characteristic are the same (TT or tt) Heterozygous = 2 alleles for a characteristic are different (Tt or tT) Probability = chance of something happening
Can a recessive Phenotype by homozygous, heterozygous, or both?

6. Genetics Crosses Ch. 9.2 (p.172-178)
Punnett Square = diagram used to predict the probability of genotype inheritance
Example with seed texture
crossing pure smooth seed plant (TT) with pure wrinkled plant (tt)

7. Genetics Crosses Ch. 9.2 (p.172-178)

8. Genetics Crosses Ch. 9.2 (p.172-178)

9. Genetics Crosses Ch. 9.2 (p.172-178)