[Answer] Which statement best explains the significance of meiosis in the evolution of a species?

Answer: 23 chromosomes
Which statement best explains the significance of meiosis in the evolution of a species?

The origin and function of meiosis are currently not well understood scientifically and would provide fundamental insight into the evolution of sexual reproduction in eukaryotes. There is no current consensus among biologists on the questions of how sex in eukaryotes arose in evolution what basic function sexual reproduction serves and why it is maintained given the basic two-fold cost of sex. It is …

Meiosis is a special type of cell division. Unlike mitosis the way normal body cells divide meiosis results in cells that only have half the usual number of chromosomes one from each pair. For that reason meiosis is often called reduction division. In the long run meiosis increases genetic variation in a way which will be explained later. Sexual reproduction takes place when a sperm fertilizes an egg. …

A zygotic meiosis is a meiosis of a zygote immediately after karyogamy which is the fusion of two cell nuclei.This way the organism ends its diploid phase and produces several haploid cells. These cells divide mitotically to form either larger multicellular individuals or more haploid cells. Two opposite types of gametes (e.g. male and female) from these individuals or cells fuse to …

Meiosis – Wikipedia

Origin and function of meiosis – Wikipedia

Meiosis (/ m aɪ ˈ oʊ s ɪ s / (); from Greek μείωσις meiosis meaning “lessening”) is a special type of cell division of germ cells in sexually-reproducing organisms used to produce the gametes such as sperm or egg cells.It involves two rounds of division that ultimately result in four cells with only one copy of each paternal and maternal chromosome ().

The significance of meiosis for reproduction and inheritance however was described only in 1890 by German biologist August Weismann who noted that two cell divisions were necessary to transform one diploid cell into four haploid cells if the number of c…

Leave a Reply