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What do the genetic codes xx and xy mean?

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xx and xy are the chromosomes of the male and female body. the female has xx chromosome and the male has xy chromosomes the sex determination chromosomes
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What is the genetic meaning of XY?

  There are 22 autosomal chromosomes and 2 sex chromosomes in humans. In all the other chromosomes, the homologous pairs match up genetic loci. However, in human sex chrom

What is a xx and a xy cell?

An xx and an xy cell are used to denote female and male zygotic  cells, respectively. They are formed from the union of a female x  egg and a male x or y sperm.

Why is xx a male and xy a female?

First of all, you're mistaken if you asked yourself this question:  XX is the female sex chromosome combination, and XY is male.    It's important to realise that this

What do XX mean and XY?

XX are the sex defining chromosomes for a girl and XY for boys

The genetic code is universal but what does this mean?

this means that the same genetic code that is used in humans is used in all other types of organisms as well. anything from animals to plants to bacteria uses the same system
In Knives

What does xx mean on a case xx?

it means that they checked the knife and everything about it twice. So it should never have any mistakes. It turned into the logo for case knives today.
In Biology

Does XY and XX sex chromosomes determine a person's sex?

Yes, but more specifically it's the presence of a Y chromosome that  determines whether a person is male. The Y chromosome carries a  gene called SRY which is the blueprint