Sexual and asexual reproduction

Question 1

definition of asexual reproduction

Answer 1

divide by mitosis=2 diploid daughter cells

genetically identical to parent cell

Question 2

sexual reproduction definition

Answer 2

involves meiosis= production of genetically different haploid gametes
fuse to form diploid cell fertilisation

Question 3

Advantages and disadvantages of asexual reproduction

Answer 3

advantages-lots of offspring produced very quickly
reproductive cycle so fast(bacteria E.coli)
allows organ.. colonise new area rapidly
1 parent needed (aphid) when conditions r favourable

disadvantages-no genetic variation if environment changes unfavourable conditions whole population affected

Question 4

Disadvantages and advantages of sexual reproduction

Answer 4

ad-genetic variation=different charact…
if envir.. conditions change more likely some individuals survive
lead to natural selection and evolution species better adapted to new envi..

dis-takes time and energy = fewer offspring produced
need mate problem if they are isolated