Module 3: Sexual Reproduction in Animals

Question 1

sexual reproduction by union of gametes

Answer 1

syngamy

Question 2

gametes that fuse are of identical appearance and size; surface proteins help in recognizing the different types of genotypes

Answer 2

isogamy

Question 3

gametes are of two different sizes; female is usually larger, number of males is increased

Answer 3

anisogamy / heterogamy

Question 4

mobility of the gametes are different

Answer 4

oogamy

Question 5

non-motile female gamete

Answer 5

oocyte

Question 6

flagellated male gamete

Answer 6

spermatozoon

Question 7

one individual has both male and female reproductive parts; may self-fertilize or may mate with another of their species, both producing offspring; common in animals that have limited mobility or are not motile

Answer 7

hermaphroditism

Question 8

individual changes its sex at some point in its life

Answer 8

sequential hermaphroditism

Question 9

organism functions first as a female and later as a male

Answer 9

protogyny

Question 10

organism functions first as a male and later as a female

Answer 10

protandry

Question 11

organism can change sex reversibly

Answer 11

reciprocal sex change