B8 Flashcards
1
Q
define asexual reproduction
A
process resulting in production of genetically identical offspring from one parent
2
Q
type of reproduction in bacteria, yeast, sea anemone
A
asexual
- cell division (binary fission)
- budding
- split in half, grow to form individual
3
Q
define sexual reproduction
A
- process involving fusion of nucleus of two gametes to from a zygote
- production of offspring that are genetically different from each other
4
Q
define species
A
group of organisms that can reproduce to produce fertile offspring
5
Q
is nucleus of gamete complete?
A
no, it is haploid
6
Q
is nucleus of zygote complete
A
yes, it is diploid
7
Q
what is haploid
A
haploid cell only has one set of chromosomes
8
Q
what is diploid
A
diploid cell carries two sets of chromosomes, one from each parent
9
Q
advantages of asexual reproduction
A
- less energy used
- easier production of new plants
- species able to populate area quickly
- desired characteristics retained
- reproduction is faster
- only one parent needed
10
Q
disadvantages of asexual reproduction
A
- more susceptible to disease
- more vulnerable to environmental change
- any non-beneficial trait will be passed on
- only suitable to one type of environment
11
Q
advantages of sexual reproduction
A
- genetic variation, allow adapt to changes in environment
- disease less likely to affect population
12
Q
disadvantages of sexual reproduction
A
- lots of energy to ensure successful reproduction
- takes long time
13
Q
A
