2006-12-10 10:51:38 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Biology
When a sex cell is formed in the gonad organs, the diploid genotype for that individual is divided in half during a process called "meiotic reduction division."
A sperm or an egg cell will get a random half of the genes from the parent whose body made it. That means that these "haploid" sex cells carry only half the number of chromosomes usual for the species. For humans, the sex cells have 23 chromosomes instead of the 46 chromosomes that most other "diploid" body cells have.
During sexual reproduction, when the egg is fertilized by the sperm, these random halves of the parents' genomes recombine to form a full set of chromosomes, or genes, which is necessary to creating a child.
2006-12-10 11:03:53 · answer #1 · answered by Anonymous · 0⤊ 0⤋
through the genes .Genes contain genetic information in the form of genetic code or triplet code.This code is written in DNA in the form of nitrogen bases.
The genetic information from parents to off springs is passed through the genes and the off springs develop the characters accordingly.Off course the main thing here is the nitrogen base sequence in the synthesis of proteins and enzymes
2006-12-10 10:59:59 · answer #2 · answered by red rose 5 3 · 0⤊ 0⤋
You get 23 chromosomes from mommy and another 23 strands from daddy. Gender is detemined by your father who either gives you an X (boy) or Y (girl) chromosome.
2006-12-10 11:00:06 · answer #3 · answered by Ramon L 2 · 0⤊ 0⤋
By having sex cells of both parents combine (firtilization) which is haploid sperm (23 chromosomes) and haploid egg (23 chromosomes)
2006-12-10 11:04:21 · answer #4 · answered by Dr. Zoo 3 · 0⤊ 0⤋
Is the unique question somewhat proposed that way? utilising truth what the question is calling is "Describe how evolution drives evolution". And it does not. Random mutations and non-random organic and organic decision are what drives evolution.
2016-11-30 10:00:59 · answer #5 · answered by Anonymous · 0⤊ 0⤋