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What is Y chromosomes?
A Y Chromosome is a mammalian sex chromosome which occurs only in male cells.
What is a loss of complete chromosome called?
A loss of a complete chromosome is called monosomy. This occurs when a cell only has one copy of a particular chromosome instead of the usual two copies.
What type of DNA only is transmitted by fathers to sons?
The DNA of the Y-chromosome is the DNA that is transmitted only from father to son. This is because women have two X-chromosomes, one of which is given to each child. But men have one X-chromosome and one Y-chromosome. So if a father gives a Y-chromosome to his child that child will be male, while only females receive the father's X-chromosome.
Why are men most likely to have hemophilia?
Since Hemophilia A is an "X Chromosome" disease and women have two "X" Chromosomes, women with only one "X" Chromosome with the disorder would be carriers of the disease but not affected by it. Women with both "X" Chromosomes with the disorder would be very rare.
What is the y chromosome?
only men have them
What genes of the Y chromosome make men smarter than women?
The only genes on this very small chromosome are the genes that make men as men. They are the male sex genes. There is no gene for intelligence.
Which chromosome is found only in males?
Y chromosome
Why do X-linked traits affect men more than women?
X-linked traits affect men more than women because men have only one X chromosome, while women have two. If a man inherits a recessive X-linked trait, he will express it since there is no second X chromosome to potentially mask the effect. In contrast, women can be carriers of the trait on one X chromosome without expressing it if the other X chromosome carries a normal allele. Consequently, X-linked disorders are more prevalent in men.
What do you call it if a person is missing a chromosome?
If a person is missing a chromosome, it is known as monosomy. Monosomy occurs when there is only one copy of a particular chromosome instead of the usual two copies. For example, a person missing one copy of chromosome 21 would have a condition called monosomy 21 or trisomy 21, which is also known as Down syndrome.
what cell contain only one sex chromosome?
In males, sperm contain only one sex chromosome. In females, eggs contain only one sex chromosome.
How many rounds of chromosome replication occur in the cell?
One round of chromosome replication occurs in the cell during the S phase of the cell cycle. This results in each chromosome being duplicated, producing two identical DNA molecules called sister chromatids that are connected at the centromere.
When does mastitis occur?
Mastitis occurs when there is inflammation in the mammary glands, usually due to a bacterial infection. It most commonly occurs in breastfeeding women but can also happen in women who are not breastfeeding. Symptoms include breast pain, redness, and swelling.
