An X and an X
Female humans, and most other female mammals have two X sex chromosomes.
Any type of cell goes through mitosis. The process is when one cell is divided to make two new cells.Both of the new cells have the right amount of chromosomes and very thing in them
There are two main characteristics of the chromosomes that are the most useful in matching homologous pairs. These two are size and viz.
The two chromosomes (two "X" shapes) that are in a pair are generally called "homologous chromosomes". A pair of "chromatids" make up the two arms of a single chromosome.
There are actually 5 steps of mitosis - Steps 1: the nucleus disappears and chromosomes start to appear. 2: the chromosomes make copies of themselves. 3:the chromosomes line up in the middle of the cell. 4:the chromosomes split and are pulled to both ends of the cell. 5:the cell splits.
13. it makes an exact replica of itself, so just multiply the number by 2, which makes 26. After you make an exact replica of the 13 chromosomes (which is now 26, since you've multiplied it), the cell has to split in two in order to create 2 daughter cells, which is the main reason for mitosis. 26 / 2 = 13, 13 chromosomes each for two daughter cells.
all i know is, is that two chromosomes(and only two) make up one gene which can make up a bunch of organisms.
They have homologous chromosomes
The main thing in making a relationship, that lasts, with a girl is showing her that your trust and unselfishness comes hand in hand. If those two things are apparent when beginning a relationship or engaging with someone, the rest is history.
A baby with two X chromosomes is female.
The two main reactants that are used to make urea are oxygen and carbondioxide.