chromosome

Think of DNA as the actual code and of chromosomes as the modules/files that hold it.

20% of human eggs have the wrong number of chromosomes, compared with 3-4% of sperm.

>"What's interesting is that the older the species, the more the chromosomes, or at least this is the trend.

More likely is that it's because some key genes are present on the X chromosome but not on the Y chromosome.

But this chromosome is not inactivated as the 50% of the X chromosomes in females.

How that could arise is a mystery considering males have only one X chromosome.

Then at the end of the period just examine the ratio of sperm cells with X and Y chromosome in the males' semen.

A cell has to split the chromosomes twice in meiosis to form a gamete, which is a difficult process where a lot can go wrong.

The real reason is that these genes sit on the x chromosome, which makes it possible for women to be heterozygotes.

They're leaving that whole market to HP, Dell, etc, who've proven over and over they don't have an innovative chromosome in their entire DNA.

In fact, we're so aware of it that we have an entirely separate category for athletes that lack a Y chromosome.

It's important to be wary of the term 'junk DNA'...just because a segment of a chromosome is noncoding does not mean it has no role in the genome's function.

If programmers with a Y-chromosome are exponentially less likely to either sue us or get us labelled sexist jerks in the press, then that's who we're hiring.

This date suggested that Y chromosome Adam lived tens of thousands of years after his female counterpart Mitochondrial Eve, who lived 150,000-200,000 years ago[8].

However, when an entire chromosome is translocated, the boundaries of one of the chromosomes remain intact, so there is no surprise that it happens.

These errors in chromosome separation are the leading cause of miscarriage and mental retardation.

Or the poor HN engineer being forced yet again to don the sackcloth and ashes for having a Y chromosome?Women in general are statistically less interested in math, science, or computers.

One such disorder is Prader-Willi syndrome, a form of obesity associated with mild mental retardation that occurs in about 1 in 25,000 people and has been traced to abnormalities in a group of genes on chromosome 15.

When a male individual has several wives, he has effectively prevented other males in the community from reproducing and passing on their y-chromosomes to subsequent generations.

So I'm not sure if it's possible to have a different kind of vision in this case.--- It's more complicatedActually you can have more than 1 copy of the color genes in each chromosome, and there are more than two variations of each gene, so it's more complicated.