Part H: Lecture 17

Question 1

mechanisms for sexual reproduction/alternating between haploid & diploid in eukaryotes

Answer 1

1)mating types
2)male and female parts
3)male and female individuals

Question 2

mating types: organisms

Answer 2

most unicellular eukaryotes (ex. yeast & tetrahymena)

Question 3

mating types: yeast

Answer 3

a & α

Question 4

mating types: tetrahymena

Answer 4

seven mating types (roman numerals)

Question 5

mating types: mechanism (yeast)

Answer 5

alleles of MAT gene determines mating types (MAT-a & MAT-α)

Question 6

male and female parts: organisms

Answer 6

very common in plants, some animal organisms
(ex. corn & earthworms)

Question 7

earthworms sexual reproduction mechanism

Answer 7

-don’t come in male/female, they produce both eggs and sperm
-need earthworms to mate
-two earthworms exchange sperm for fertilization (can’t self fertilize)

Question 8

male and female parts: mechanism

Answer 8

organogenesis (process by which embryonic cells become male and female organs)

Question 9

male and female individuals: organisms

Answer 9

most animals and some plants (ex. squirrels and holly trees)

Question 10

holly trees that have fruit

Answer 10

female holly trees (fertilized by pollen from male holly trees)

Question 11

male and female individuals: mechanism

Answer 11

sex determination (process by which individuals become either male or female)