reproduction Flashcards
what are the two types of reproduction?
sexual and asexual
how many parents does asexual reproduction require?
one
how many parents does sexual reproduction require?
two different reproductive cells (usually male and female)
what are the genetics of the offspring for asexual reproduction?
genetically identical to parent
what are the genetics of the offspring for sexual reproduction?
some genes of both parents but not identical to either
what are the 6 types of asexual reproduction?
binary fission budding regeneration spore formation vegetative propagation (plants) parthenogenesis
what are the 2 types of sexual reproduction?
conjugation
union of egg and sperm
what is binary fission? name examples of organisms that use this
the organism splits into 2 parts
amoeba (bacteria)
what is budding? name examples of organisms that use this
offspring grows from parent and breaks off
yeast, hydra
what is regeneration? name examples of organisms that use this
form from a part that breaks off from the parent
more primitive = more likely to regenerate
starfish, planaria
what is spore formation? name examples of organisms that use this
release of many spores that produce individual offspring
moulds
what is vegetative propagation in plants? name examples of organisms that use this
new plants produced without seeds
plants: bulbs, tubers, rhizomes, runners, cuttings, layering, grafting
what is parthenogenesis? name examples of organisms that use this
production off offspring from “virgin”- egg development without fertilization
daphnia, aphids, reptiles
what is conjugation? name examples of organisms that use this
cells come into contact and exchange genetic material
algae, paramecium
what is a union of egg and sperm? name examples of organisms that use this
produced by ovaries and testes –> form a zygote
earthworms, planaria (flatworms)
