of the formation of haploid sex cells during meiosis, which then unite to form a new diploid cell called a zygote, which will have the same number of chromosomes as the members of that species.
We'll use humans as an example since it's simple and relevant.
All healthy humans have 46 chromosomes (23 pairs of very similar chromosomes). When gametes are formed in meiosis, this number is halved, such that sperm and ovum have only 23 chromosomes (just one of each pair). When these gametes meet and fuse as a result of sexual reproduction, the 23 chromosomes from the ovum and the 23 chromosomes from the sperm combine to form the full set of 46.
Sometimes meiosis doesn't quite work perfectly, though. Downs Syndrome is an example of this (one gamete has both copies of chromosome 21, so after fusion with the other gamete there are 3 chromosome 21s!).
Depends on what species is in questions - different species have different numbers of chromosomes in gametes.
It has pairs of matching chromosomes.
changes a species' number of chromosomes.:) no problem
It depends on the species. Most species of Rhopalocera have in the neighborhood of 2n = 60 chromosomes.
Yes, every organism has a two part scientific name.
Yes
Yes, if two organisms have the same full set number of chromosomes, then they would have to be the same species. Every species has a different amount of chromosomes.?æ
the animals having same number of chromosomes but members of different species why?
It has pairs of matching chromosomes (APEX)
No, chromosomes vary from species to species. A species is distinguished by individuals that can mate and have young that are capable of producing offspring. The number of chromosomes two individuals have must be the same for this to be possible.
46 Chromosomes
It varies from species to species. The human nucleus contains 46 chromosomes.
scientific for evolution
Yes they do. Some species have the same number of chromosomes but not all.
Depends on what species is in questions - different species have different numbers of chromosomes in gametes.
They have homologous chromosomes
It has pairs of matching chromosomes.