In biology, FITNESS is described as the ability to survive and create offspring.
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So, one at a time: I'm attaching a picture of the punnet squares (hard to make on the computer (and you can simplify the ratios down):
4. HHnn x hhNN
All offspring are HhNn; 100% same genotype (HhNn); 100% phenotype of short, normal
5. HhNn x HhNn
Genotypes and ratio:
HHNN(1): HHNn(2): HhNN(2):HhNn(4):HHnn(1):Hhnn(2): hhNN(1):hhNn(2):hhnn(1)
Phenotypes and ratio:
Short normal (9): short colorpoint(3):Long normal (3): Long colorpoint (1)
6. TtNn x ttnn
Genotypes and ratio:
TtNn(4):Ttnn(4):ttNn(4):ttnn(4) (which is 1:1:1:1)
Phenotypes and ratio:
Tabby normal (1): Tabby colorpoint (1): Stripless normal (1): stripless colorpoint (1)
7. hhNn x hhNn
hhNN(4): hhNn(8):hhnn(4)
short normal (12): short colorpoint (4)
