1. Mendel’s Work-Chapter 2.1 (page 76-81C)-Reading Guide
Define Heredity:________________________________________________________________________
What was the initial observation/question that caused Mendel to create his experiment?__________________
__________________________________________________________________________________________
Define Trait:_______________________________________________________________________________
Define Genetics:____________________________________________________________________________
Mendel’s Experiments:
Define fertilization:__________________________________________________________________________
What is self-pollination? ______________________________________________________________________
What is cross-pollination? _____________________________________________________________________
In the box below summarize Mendel’s method for cross pollination of the pea plants (figure 1):
Crossing Pea Plants:
What types of characteristics did Mendel look for to decide how to cross the pea plants?__________________
Define Purebred:____________________________________________________________________________
What is the P generation?____________________________________________________________________
What is the F1 or (first filial) generation?_______________________________________________________
What does the Latin word filia or filius mean?____________________________
Using the boxes below draw a simple diagram of what Mendel found in his first experiment:
P Generation: x
F1 Generation: x
F2 Generation:

2. Complete the “Genetics of Pea Plants” chart below using colors and simple images (pg. 79C)
Traits Seed Shape Seed Color Seed Coat Pod Shape Pod Color Flower Stem Height
Color Position
Controlled
by
Dominant
Allele
Controlled
by
Recessive
Allele
Dominant and Recessive Alleles
Summarize Mendel’s conclusions to the Pea Plant experiment below (pg. 79C):
Define Gene:___________________________________________________________________________________
Define Allele:__________________________________________________________________________________
How many alleles does a pea plant inherit from its parents?___one from the ________ and one from the _________.
Contrast dominant and recessive alleles:______________________________________________________________
______________________________________________________________________________________________
When would a recessive allele show up in a visible trait? _______________________________________________
______________________________________________________________________________________________
In the P generation plants in Mendel’s experiment, the short stem plants have two alleles for tall/short (circle one)
stem height.
What would a pea plant with 1 tall stem allele and 1 short stem allele look like? Why?________________________
______________________________________________________________________________________________
How is it possible that some F2 plants were short, while none of the F1 plants were short?____________________
______________________________________________________________________________________________

3. Using the correct form of the allele symbols (T) for tall and (t) for short, complete the offspring chart with alleles.
P Generation: x
F1 Generation: x
F2 Generation: