2007-01-09 06:03:53 · 18 answers · asked by aos474 1 in Science & Mathematics ➔ Biology
23 pairs. 46 chromososmes total
2007-01-09 06:09:08 · answer #1 · answered by suzie lou 2 · 2⤊ 0⤋
Women have 23 pairs of chromosomes.
Men have 22 pairs, and an X chromosome and a Y chromosome.
2007-01-09 10:37:39 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Normally 23 pairs. The gender chromosomes are a special pair, because they are very different from eachother.
Sometimes one of the pairs contains 3 chromosomes ("trysomy"). In that case the person in question has a 'syndrome'. Example : trisomy of chromosome 21 is the Down syndrome or mongoloïd.
There are other trisomies known, but less frequent.
2007-01-09 06:20:55 · answer #3 · answered by Biekske 1 · 0⤊ 0⤋
23 pairs= 46 complete chromosomes are present in normal beings.
Chromosomal abnormalities occur in the number of chromosomes in some individuals eg. the Mongoloid Down syndrome has an extra in chromosome (trisomy) . Here the total number is 47 chromosomes.
Deletion of part of a chromosomes do occur.
2007-01-09 16:37:54 · answer #4 · answered by Anonymous · 0⤊ 0⤋
23 pairs of chromosomes
2007-01-09 06:11:19 · answer #5 · answered by angihorn2006 4 · 1⤊ 0⤋
pairs of chromosomes 23 total no. of chromosomes 46
2007-01-09 07:21:37 · answer #6 · answered by dlg3579 3 · 0⤊ 0⤋
23
2007-01-09 08:02:24 · answer #7 · answered by jammydodger 5 · 0⤊ 0⤋
each person have 46 chromosomes .23from your dad and 23 from your mum.both comes together to form the 46 chromosomes.
2007-01-09 06:36:56 · answer #8 · answered by John mensah 1 · 0⤊ 0⤋
23 homologous pairs. 46 chromosomes. the chromosomes in each pair and the same size, shape and the centromere is always in the same place. and they have the same genes.
2007-01-09 23:10:20 · answer #9 · answered by lalala 4 · 0⤊ 0⤋
We have 23 pairs and 46 chromososmes. Im studying this in science at the moment
2007-01-09 06:11:33 · answer #10 · answered by Anonymous · 1⤊ 0⤋