BIO 240 Week 1 Comparing Cell Structures Worksheet
BIO 240 Week 1 Comparing Cell Structures Worksheet
Complete the following charts comparing prokaryotes and eukaryotes, plant and animal cells, and cells and viruses.
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What percentage of Couple 1’s male offspring will be color blind? What percentage of their female offspring will be color blind?
Couple 2 comes into your office. The husband is color blind; the wife is homozygous for the normal vision allele.
Couple 3 comes into your office. The husband is color blind; the wife is heterozygous for the color-blindness allele.
Review the results you obtained for the female offspring of the three couples.
Based on your results for the female offspring, predict whether color blindness is a dominant or recessive trait. Explain your reasoning.
Complete the Punnett squares below to determine the possible genotypes of each couple’s male and female offspring. (X^{\it N} represents the normal color vision allele. X^{\it n} represents the color-blindness allele. Y represents the Y chromosome, which does not carry the color-vision gene.)
Review the results you obtained from the lab for the female offspring of all three couples. Then, look at the female offspring (the offspring with two X chromosomes) in your three Punnett squares.
What genotype must a female child have in order to be color blind?
Explain why color blindness occurs more commonly in males than females.
Based on your Punnett squares, determine whether a son can inherit color blindness from his father. Explain your reasoning.Examine the graphs in the Lab Book, and describe any trends you observe among kelp, purple sea urchin, and sea otter populations.
What happened to all three populations when catastrophe struck the sea otters? Which populations were wiped out, and in what order?
Why do you think the removal of the otters caused the other two populations to crash as well?
Examine the graphs in the Lab Book. What happened to the populations’ growth patterns when 100 individuals of each species were reintroduced to the habitat?
What would have happened if you had only reintroduced the kelp and the urchin? Explain.
What if you had only reintroduced five individuals of each species? Would that have worked to restore the populations? Explain your hypothesis.
Describe the results of the simulation. Was your hypothesis supported?
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