what does the x mean in a dna strand
Mitochondrial DNA is not one of the 23 chromosomes you obtain from both of your parents. The X chromosome is different. The X chromosome is one of the 23 pairs of chromosomes. The 23rd pair is the pair that dictates the gender of the child. If a child has an X and a Y, itâs a male. Remember that the father contributes the Y chromosome to male children only. If the child has two X chromosomes, itâs a female.