- #1
kenny1999
- 235
- 4
Books say that we have 46 (or 23 pairs) of different chromosomes in human which determines how we look like and our sex. I now have some conceptual questions about chromosomes
1. I know that chromosomes exists as pairs in body cells except sperm cell and egg cell, but is the chromosome identical to their paired chromosomes?
How about sex chromosomes? Does male contain a pair of sex chromosome that the individual one is different while female contains a pair of sex chromsomes such that they are the same?
2. Does one cell alone in our body already contains all these 46 chromosomes? or do different body cells have different chromosomes? For example, such type of chromosomes might exists in liver cell but not heart cell etc...
Thanks
1. I know that chromosomes exists as pairs in body cells except sperm cell and egg cell, but is the chromosome identical to their paired chromosomes?
How about sex chromosomes? Does male contain a pair of sex chromosome that the individual one is different while female contains a pair of sex chromsomes such that they are the same?
2. Does one cell alone in our body already contains all these 46 chromosomes? or do different body cells have different chromosomes? For example, such type of chromosomes might exists in liver cell but not heart cell etc...
Thanks