Lab Pre-Reading Week 5: Biodiversity of Reproductive Strategies Flashcards Preview

BIOL 1003 > Lab Pre-Reading Week 5: Biodiversity of Reproductive Strategies > Flashcards

Flashcards in Lab Pre-Reading Week 5: Biodiversity of Reproductive Strategies Deck (19):
1

asexual reproduction

reproduction by which offpsring arise from a single organism and inherit genes of that parent only - no gametes, number of chromosomes dont change

2

sexual reproduction

production of new living organisms by combining genetic info from two individuals of different types (sexes) - one sex male produces small motile gamee travels to fuse with larger stationary gamete F

3

asexual strategies types

cloning, binary fission, budding, parthogenesis, fragmentation, spore formation

4

cloning

making identical copy

5

binary fission

division in half- asexual reproduction most common form of reproduction in prokaryotes some singld celled eukaryotes- amoeba

6

budding

new organism develops from an outgrowth/bud due to cell dividsion at one particular site- new organism remains attatched asit grows- separate from parent orgnaism only when matrue - leaves scar tissue

7

parthogenesis

form of reproduction where ovum develops into new indiidual without fertilization no fertilization with male

8

fragmentation

organism split into fragemnts- each fragment develop into mature, fully grown individual clones of orginal organism

9

spore formation

ie. fungi - give rise to globular structure, sporangia containing spores- reproductive cells, organism breaks into number of peices/spores - develop into organism like parent form

10

sexual strategies types

external fertilization, internal fertilization, spore formation, hermaphroditism, self incompatibility, isogamy, anisogamy, oogamy

11

external fertilization

male's sperm fertilizing female's egg outside female's body

12

internal fertilization

occurence of internal insemination as mode of combining sperm and egg

13

spore formation

multiple fission - organism breaks into number of peices developing into organism like parent form

14

hermaphroditism

organism with reproductive organs normally associate with both M and F sexes

15

self incompatibility

several genetic mechanisms in angiosperm which prevent self fertilization = outcossing, allogamy - inability to fertlize flowers of same plant/close relatives

16

isogamy

gametes with similar morphology- similar shape/size , differ in general only in allele expression in one plus mating types regions - no male or female

17

anisogamy

reproduction by union/fusion of two differing gamees in size/motility

18

oogamy

form of anisogamy- Female gemete significantly larger than male gamemete and is non motile

19

motile

power to move spontately / activetly

Decks in BIOL 1003 Class (57):