What halves the number of chromosomes in cells?
mitosis
meiosis
What enables a species to adapt to a changing environment or to colonise new environments?
What produces cells with the diploid number of chromosomes?
What enables a species to colonise an area quickly using asexual reproduction?
When out of control, a cancerous tumour may result in which case?
the original (parent) cell becomes 2 daughter cells
Which produces new genetic combinations in individuals
4 daughter cells are made
the daughter cells contain half the number of chromosomes as the parent cell
important for the repair of damaged tissue where new cells must be identical to damaged cells
daughter cells have the same number of chromosomes as the parent cells
cell division by reduction
happens only in gamete producing organs
the daughter (new) cells are copies of the parent cell
Which produces clones?
ensures that the number of chromosomes remains the same in sexually reproducing organisms
Which is important for the growth of plants and animals?
Which forms gametes (sex cells)?
Which produces cells with the haploid number of chromosomes?
DNA is copied exactly (if there are no mutations)
chromosomes of the parent cell are duplicated in the daughter cells
Which increases the variety of offspring - providing a varied stock of individuals?
