like x and y chromosomes for example?
are there other kinds of chromosomes like z chromosome?
2007-02-06 01:23:10 · 7 answers · asked by plehaq 2 in Science & Mathematics ➔ Biology
Chromosomes are long,thread like structures found in the nuclei of the all cells. They consist of one molecule of DNA(Deoxyribonucleicacid),which control or directs the activities of the cell.DNA is arranged in units called genes.these genes carry characteristics of the parents to their off-springs.
2007-02-06 01:39:50 · answer #1 · answered by A Kid Student 3 · 0⤊ 0⤋
A chromosome contains DNA. The X and Y chromosomes determine the sex of a mammal. I don't know about other animals. Each person normally has one pair of sex chromosomes in each cell. Females have two X chromosomes, and males have one X and one Y chromosome.
2007-02-06 01:30:55 · answer #2 · answered by Lisa E. 2 · 0⤊ 0⤋
The chromosomes are made of genes which are mad of DNA. They carry all the gentic material for the new generations. They also direct the repair and growth of the body as they are the genetic material to each new cell.
2007-02-06 01:33:10 · answer #3 · answered by science teacher 7 · 0⤊ 0⤋
there are 22 sets of autosomes and 1 set of sex chromosomes(which determine one's gender)... and XY chromosomes are the sex chromosomes... until now i dont think there is any z chromosomes, but science is always advancing and there might be a discovery of a z chromosome someday...
2007-02-06 01:48:56 · answer #4 · answered by yuk 2 · 0⤊ 0⤋
chromosomes include of genetic information.chromosomes in humans are X and Y. but it can different in the other animals
2007-02-06 01:36:17 · answer #5 · answered by elnaz a 1 · 0⤊ 0⤋
they are like combinations to your dna structure but i know xx is female and xy is male
2007-02-06 01:33:30 · answer #6 · answered by US SOLDIER 2 · 0⤊ 0⤋
try this: http://en.wikipedia.org/wiki/Chromosomes
2007-02-06 01:31:24 · answer #7 · answered by Xiomy 6 · 0⤊ 1⤋