Chapter 08: Sex and evolution

Question 0

twofold cost of meiosis (n.)

Answer 0

the 50% genetic cost of sexual reproduction to each individual parent

Question 1

parthenogenesis (n.)

Answer 1

asexual reproduction that forms diploid eggs

Question 2

dioecious (n.)

Answer 2

plants that express separate genders in separate individuals

Question 3

monoecious (n.)

Answer 3

plants that have male flowers and female flowers on the same individual

Question 4

perfect flowers (n.)

Answer 4

flowers that have both male and female parts

Question 5

outcrossing (n.)

Answer 5

fertilization that takes place between the gametes of different individuals

Question 6

haplodiploidy (n.)

Answer 6

sex differentiation where females are diploid and males are haploid

Question 7

polygamy (n.)

Answer 7

mating system where a single individual forms long-term bonds with multiple members of the opposite sex

Question 8

polygyny (n.)

Answer 8

one male mating with multiple females

Question 9

polyandry (n.)

Answer 9

one female mating with multiple males

Question 10

sexual dimorphism (n.)

Answer 10

a difference in outward appearances of male and female individuals of the same species

Question 11

parasite-mediated sexual selection (n.)

Answer 11

selection driven by parasites affecting showiness and reducing fitness; parasite-resistant males are favored (Hamilton-Zuk hypothesis)