MendelWeb)1st Experiment (form) 2nd Experiment (color) Questions
A lesson in the value of a LARGE sample size!
(This data is taken from a site called MendelWeb)
1st Experiment (form) 2nd Experiment
(color) Questions
KEY to the COLORS |
# Dominant |
# of Plants |
# Recessive |
# of Offspring |
Genotypic Ratio |
1st Experiment: Form of seed. Top 2nd Experiment (color) Questions
"From 253 hybrids
7324 seeds were obtained in the second trial year.
Among them were 5474 round or roundish ones
and 1850 angular wrinkled ones.
Therefrom the ratio 2.96 : 1 is deduced."
KEY to the COLORS |
# Dominant |
# of Plants |
# Recessive |
# of Offspring |
Genotypic Ratio |
2nd Experiment: Color of albumen. Top 1st Experiment (form) Questions
"258 plants yielded
8023 seeds,
6022 yellow,
and 2001 green;
their ratio, therefore, is as 3.01 : 1."
KEY to the COLORS |
# Dominant |
# of Plants |
# Recessive |
# of Offspring |
Genotypic Ratio |
Questions: 1st Experiment (form) 2nd Experiment (color) Top
1. Why did Mendel make his numbers so high?
2. Would the results have produced a similar ratio if the numbers had been much lower? Explain why, or why niot?
3. How would you describe the parents in the second experiment?
4. Construct a punnett square for each of the experiments above.
5. punnett squares were designed by a biologist years after Mendel's experiment. Do you think Mendel would have been able to figure out the concept of Homozygous & Heterozygous if he had only used 10 plants? Explain why, or why not?
The questions above may be helpful to your punnett Square Probability Lab . . .
Visit
Back to the punnett Square Probability Lab
Mr Lazaroff's Biology I & II Top