16.4- reproductive stragtegies Flashcards
mitosis is ____ reproduction
asexual
meiosis is _____ reproduction
sexual
2 ways bacteria reproduces
1- binary fission
2- conjugation
explain binary fission in bacteria
results In exponential population growth where all offspring are identical
explain conjugation in bacteria
involves exchange of DNA in bacteria resulting in genetic diversity
asexual reproduction is most common in ____
plants
what is budding
miniature version grows off of parent plant before falling off and becoming independent
what is vegetative reprodution
new plants develope from underground runners
what is fragmentation
new plants grow from a fragment (eg- cutting) of a parent plant
what is pathenogenesis
a new individual develops from an unfertilized egg
what is spores reproduction
genetic material inside protected by an outer wall that opens allowing dispersal
asexual results from mitosis
sexual results from meiosis or fertilization
advantages of sexual reproduction
- genetic variation
- reduces competition among offspring
- crossing over repairs damaged
chromsosomes
- allows population to adapt to changing
environment
advantages to asexual reproduction
- faster then sexual reproduction
- uses less energy
- offspring an stay attached to parent until independent
the diploid generation of plants is known as the
sporophyte generation
the haploid generation of plants is known as the
gametophyte generation
