Apply only to diploid species.
Mendel worked with garden peas.
F1  

yelloworange male 
X  yelloworange female 

Rr  X  Rr  F2  
female  RR  1  25%  orange  
R  r  Rr  2  50%  yelloworange  
male  R  RR  Rr  rr  1  25%  yellow  
r  Rr  rr  Σ  4  100% 
F1  

hybrid Yellow male 
X  hybrid Yellow female 

Yy  X  Yy  F2  
female  YY  3  75%  yellow  
Y  y  Yy  
male  Y  YY  Yy  yy  1  25%  white  
y  Yy  yy  Σ  4  100% 
F1  

hybrid purplish, hairy male 
X  hybrid purplish, hairy female 

ANL/anl, H/h  X  ANL/anl, H/h  F2  
female  ANL/ANL, H/H  1  6.25%  tall, v. hairy 

ANL, H  ANL, h  anl, H  anl, h  ANL/ANL, H/h 
2  12.5%  tall, hairy 

m a l e 
ANL, H  ANL/ANL, H/H 
ANL/ANL, H/h 
ANL/anl, H/H 
ANL/anl, H/h 
ANL/ANL, h/h 
1  6.25%  tall, hairless 

ANL, h  ANL/ANL, H/h 
ANL/ANL, h/h 
ANL/anl, H/h 
ANL/anl, h/h 
ANL/anl, H/H 
2  12.5%  purplish v. hairy 

anl, H  ANL/anl, H/H 
ANL/anl, H/h 
anl/anl, H/H 
anl/anl, H/h 
ANL/anl, H/h 
4  25%  purplish, hairy 

anl, h  ANL/anl, H/h 
ANL/anl, h/h 
anl/anl, H/h 
anl/anl, h/h 
ANL/anl h/h 
2  12.5%  purplish hairless 

anl/anl, H/H 
1  6.25%  green v. hairy 

anl/anl, H/h 
2  12.5%  green hairy 

anl/anl, h/h 
1  6.25%  green hairless 

Σ  16  100.00% 
F1  

hybrid normal, green male 
X  hybrid normal, green female 

EIN/ein, YGR/ygr  X  EIN/ein, YGR/ygr  F2  
female  1EIN/EIN, YGR/YGR 
9  56.25%  normal, green 

EIN, YGR 
EIN, ygr 
ein, YGR 
ein, ygr 
2EIN/EIN, YGR/ygr 

m a l e 
EIN, YGR 
EIN/EIN, YGR/YGR 
EIN/EIN, YGR/ygr 
EIN/EIN, YGR/YGR 
EIN/EIN, YGR/ygr 
2EIN/ein, YGR/YGR 

EIN, ygr 
EIN/EIN, YGR/ygr 
EIN/EIN, ygr/ygr 
EIN/ein, YGR/ygr 
EIN/ein, ygr/ygr 
4EIN/ein, YGR/ygr 

ein, YGR 
EIN/ein, YGR/YGR 
EIN/ein, YGR/ygr 
ein/ein, YGR/YGR 
ein/ein, YGR/ygr 
1EIN/EIN, ygr/ygr 
3  18.75%  normal, ygreen 

ein, ygr 
EIN/ein, YGR/ygr 
EIN/einl, ygr/ygr 
ein/ein, YGR/ygr 
ein/ein, ygr/ygr 
2EIN/ein ygr/ygr 

1ein/ein, YGR/YGR 
3  18.75%  tall green 

2ein/ein, YGR/ygr 

1ein/ein, ygr/ygr 
1  6.25%  tall ygreen 

Σ  16  100.00% 
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