BIOLOGY
NAME:_______________________________
DATE:_____________________PER:_______
CH. 11.3 VOCABULARY & PREP
More on Mendelian Genetics!
 Define these terms AND give an example of each:
 independent assortment
o Ex:
 incomplete dominance
o Ex:
 codominance
o Ex:
 multiple alleles
o Ex:
 polygenic traits
o Ex:
 Use your book to answer these questions:
1) How many traits does a ONE-FACTOR CROSS track? _____

Do you use a 4-box or 16-box Punnett Square for tracking 1-trait?
______________
2) What is a TWO-FACTOR CROSS? ______
 Do you use a 4-box or 16-box Punnett Square for tracking 1-trait?
_______________
3) Use the example in the text of the book on pg. 270 & in Figure 11-9 to
answer the following questions:
A) What are the 2 traits being tracked/observed?
_______________________________
B) What is the dominant phenotype & allele for each trait?
TRAIT 1: Dominant phenotype- ________________ = _____
Recessive phenotype- ________________ = _____
TRAIT 2: Dominant phenotype- ________________ = _____
Recessive phenotype- ________________ = _____
C) What are the parents' PHENOTYPES? (Hint: You’re looking at 2 traits!)
________________________ & ___________________________
D) What are the parents' GENOTYPES?
_____________ & _____________
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E) Copy the 2-FACTOR CROSS PUNNETT SQUARE (16 boxes) in Fig.11-9
 SUMMARIZE Mendel's 4 Principles: (see textbook)
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