Question

6. Which of the following is a critical assumption of the Trivers-Willard hypothesis:

1. offspring condition depends on the mother’s condition
2. paternity in the population is skewed heavily to males in best condition
3. most females in the population mate
4. all of the above
5. none of the above

7. Which fact(s) about the placenta makes it a particularly likely arena for interfamilial conflicts to play out:

1. it is a structure created by the mother
2. it is a structure created by the fetus
3. it is a structure that draws investment from the mother
4. a and c are correct
5. b and c are correct

8. You discover a new gene expressed in the placenta. You find that this gene is responsible for diverting more nutrients to the developing fetus. Based on the conflict hypothesis for imprinting you predict:

1. the father’s copy is turned on; the mother’s copy is turned off
2. the mother’s copy is turned on; the father’s copy is turned off
3. both the mother and the father’s copy are turned on
4. both the mother and the father’s copy are turned off

9. Some evolutionary biologists have argued that menopause is adaptive. Which statement(s) below help form the logical basis of their argument:

1. risks of child bearing increase with age
2. older mothers are unlikely to survive until offspring reach independence
3. remaining fertile detracts from investment in current offspring
4. all of the above

Answer 1

6. The critical assumptions of the trivers-willard hypothesis is:

• a. Offspring condition depends on the mother's condition.

7.  fact(s) about the placenta makes it a particularly likely arena for interfamilial conflicts to play out is:

• d. A & C are correct

8.You discover a new gene expressed in the placenta. You find that this gene is responsible for diverting more nutrients to the developing fetus. Based on the conflict hypothesis for imprinting you predict:

• b. the mother’s copy is turned on; the father’s copy is turned off

9. Some evolutionary biologists have argued that menopause is adaptive. statement(s) below help form the logical basis of their argument is:

• b. older mothers are unlikely to survive until offspring reach independence