Multiple Choice questions:
1. If the earths climate changed into significantly warmer conditions than present, given that increase in body surface area increases heat dissipation, what kinds of humans would you expect in the deep future? Assume that all humans have to live in natural environmental conditions. i.e. not inside buildings.
Thinner and shorter build compared to present humans.
Same build as present humans.
Thinner and taller build compared to present humans.
Thicker and taller build than present humans.
Thicker and shorter build compared to present humans.
2. Which if the following statements about sickle-cell anemia is false?
Heterozygotes have a greater resistance to malaria.
Heterozygotes are carriers of the gene for sickle-cell anemia.
The sickle-cell disease will be immediately wiped out if a vaccine for
malaria is found.
Homozygous recessives show an acute and sometimes fatal disease.
The distribution of the disease is closely aligned to where malaria is
3. Imagine that scientists removed 2 blastomere cells from a young 8-cell stage embryo in order to perform a genetic test. How would this impact the embryo's development?
The embryo will continue to develop, but will be 25% smaller in size when it is born.
There will not be a major impact on the embryo's development
The embryo will be born with rearranged body parts.
The embryo will be missing the organ system that usually derives from the two missing cells.
The embryo will die because 25% of the instructions for development are missing.
Which of the following describes the axial location of your heart?
anterior, dorsal, left
posterior, ventral, left
posterior, dorsal, left
anterior, ventral, left
Note: The fifteen questions in saturday are shorter and a lot easier than today's questions.