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Firstly, mutation. In a sexually reproducing population recombination ( independent orientation of chromosomes and crossing over in meiosis and random fertilization ) is also a source of variation in populations.
From their parents.
The phenomenon in which one generation of certain plants and animals reproduces asexually, followed by a sexually reproducing generation. Also known as alternation of generations.
Through Meiosis
half of its genetic material from each parent.
Mutation and the genetic recombination in sexually reproducing organisms.
Sexually-reproducing species have an advantage over asexually-reproducing species in their ability to use two different sex cells.
Sexually-reproducing species are able to adapt more easily than asexual-reproduciing species
Firstly, mutation. In a sexually reproducing population recombination ( independent orientation of chromosomes and crossing over in meiosis and random fertilization ) is also a source of variation in populations.
adapt
they multiply
If meiosis did not occur in sexually reproducing organisms, the chromosome number would double in each generation. Sexual reproduction results in new combinations of genetic traits.
by reproducing asexuallly or sexually
From their parents.
The gametes.
puberty
The genetic material of a sexually reproducing organism evolves for better adaptations.