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only men have them
Wiki User
∙ 7y ago
Wiki User
∙ 14y agoThe Y chromosome is the one that carries male genetics. It pairs with the X chromosome that carries female genetics. All males have an XY pair whereas females have an XX pair of chromosomes.
The y chromosome is one variation of the two possible sex chromosomes in humans and other mammals. All people have at least one y chromosome. The difference is that women have two homologous y chromosomes and men have one y chromosome and one smaller x chromosome matched with it. It is commonly thought to code for certain sexual characteristics and developmental traits.
Wiki User
∙ 8y agoA Y Chromosome is a mammalian sex chromosome which occurs only in male cells.
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Is there an X or Y chromosome in an egg?
An egg will have the X chromosome and the sperm will have an X or Y chromosome.
The y chromosome closely resembles many of the other chromosomes. What did you have to do to determine that it was the y chromosome?
The Y chromosome closely resembles many of the other chromosomes. What did you have to do to determine that it was the Y chromosome?
What does a person with an X chromosome and a Y chromosome have?
male
Which chromosome is found only in males?
Y chromosome
Why does the X chromosome affect an organisms phenotype more than the Y chromosome?
The X chromosome contains considerably more genetic material than the Y chromosome.
Is there an X or Y chromosome in an egg?
An egg will have the X chromosome and the sperm will have an X or Y chromosome.
The y chromosome closely resembles many of the other chromosomes. What did you have to do to determine that it was the y chromosome?
The Y chromosome closely resembles many of the other chromosomes. What did you have to do to determine that it was the Y chromosome?
Does an x chromosome looks the same as a y chromosome?
No. An 'X' chromosome looks like an 'X'. The 'Y' chromosome looks like a deformed 'X'. It is noticeably different to an 'X' chromosome. Also, the 'Y' chromosome is only a third of the size of an 'X' chromosome - an 'X' chromosome is 155 million base pares, while the 'Y' chromosome is only 58 million base pairs.
Which chromosome carries a gene which is essential for maleness?
The Y Chromosome.
Why is x chromosome called x?
An X chromosome is known as an X chromosome based on its shape, which resembles an X. The Y chromosome resembles a Y.
What are the x and y chromazones?
The Y chromosome is the male sex chromosome, but males also carry a X chromosome from their mother. XY. The female sex chromosome is the Y chromosome; YY is female. ( generally, as sex chromosome number in both sexes can vary )
Why is the y chromosome useful for tracing ancestry?
The y-chromosome is only present in males. Men will a y-chromosome identical to that of their father, and his father, and his father, etc.
What is the sry gene?
The SRY gene is a gene on the Y chromosome required for the development of testes. It stands for Sex determining Region on Y chromosome.
The Y chromosome is larger and carries fewer genes than the X chromosome?
No. The Y chromosome is much smaller than the X chromosome. There are only about 70 active genes on the Y chromosome and many more deleteriously mutated one. The X chromosome contains many more active genes and only crosses over marginally with the Y chromosome.
Men have one of y?
The y chromosome. The chromosome pair that determine sex (gender) can have x and y chromosomes; men have one X and one Y chromosome, women have to X chromosomes.
What does a person with an X chromosome and a Y chromosome have?
male
Which chromosome is found only in males?
Y chromosome
