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How do X and Y chromosome differ?
The X chromosome is larger and carries more genetic information than the Y chromosome. The Y chromosome carries the genes that determine male sex characteristics, while the X chromosome carries genes that are important for both male and female development. Males typically have one X and one Y chromosome, while females have two X chromosomes.
Why does the Y chromosome be unlikely to contain any of the genes that are absolutely necessary for survival?
Yes, the y chromosome is critical for survival, for males at least. It contains the DNA (or genes) for the genetic make up of a male's body. No, I don't think so because Y chromosomes just dermine the sex. If it was critical to life then no girl would be alive because they don't have Y chromose. Y chromosome truly determines sex. It contains SRY gene that produces TDF which makes sth to male. it not important for survival, just for prodactivity, since Y has came from X chromosome.
How many chromosomes do you have in a cell found in your elbow?
The X chromosome is one of the two sex chromosomes in humans (the other is the Y chromosome). The sex chromosomes form one of the 23 pairs of human chromosomes in each cell. The X chromosome spans about 155 million DNA building blocks (base pairs) and represents approximately 5 percent of the total DNA in cells. Each person normally has one pair of sex chromosomes in each cell. Females have two X chromosomes, while males have one X and one Y chromosome. Early in embryonic development in females, one of the two X chromosomes is randomly and permanently inactivated in cells other than egg cells. This phenomenon is called X-inactivation or Lyonization. X-inactivation ensures that females, like males, have one functional copy of the X chromosome in each body cell. Because X-inactivation is random, in normal females the X chromosome inherited from the mother is active in some cells, and the X chromosome inherited from the father is active in other cells. Some genes on the X chromosome escape X-inactivation. Many of these genes are located at the ends of each arm of the X chromosome in areas known as the pseudoautosomal regions. Although many genes are unique to the X chromosome, genes in the pseudoautosomal regions are present on both sex chromosomes. As a result, men and women each have two functional copies of these genes. Many genes in the pseudoautosomal regions are essential for normal development. Identifying genes on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. The X chromosome likely contains between 900 and 1,400 genes. These genes perform a variety of different roles in the body. (Note: So I believe your answer will be 46; 23x2)
What is the y chromosome?
only men have them
What is a true statement about sex-linked traits?
Men normally have an X and a Y combination of sex chromosomes, while women have two X's. Since only men inherit Y chromosomes, they are the only ones to inherit Y-linked traits. Men and women can get the X-linked ones since both inherit X chromosomes.There are about 1,098 human X-linked genes. Most of them code for something other than female anatomical traits. Many of the non-sex determining X-linked genes are responsible for abnormal conditions such as hemophilia, Duchenne muscular dystrophy, fragile-X syndrome, some high blood pressure, congenital night blindness, G6PD deficiency, and the most common human genetic disorder, red-green color blindness. X-linked genes are also responsible for a common form of baldness referred to as male pattern baldness.The much smaller Y chromosome has only about 26 genes and gene families. Most of the Y chromosome genes are involved with essential cell house-keeping activities (16 genes) and sperm production (9 gene families). Only one of the Y chromosome genes, the SRY gene, is responsible for male anatomical traits.When any of the 9 genes involved in sperm production are missing or defective the result is usually very low sperm counts and subsequent infertility. About 1/3 of couples is unable to have children as a consequence of the male mate not having the necessary sperm producing genes on his Y chromosome.The Y chromosome has few active genes and mostly contains genetic junk rather than genes.
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.
How do X and Y chromosome differ?
The X chromosome is larger and carries more genetic information than the Y chromosome. The Y chromosome carries the genes that determine male sex characteristics, while the X chromosome carries genes that are important for both male and female development. Males typically have one X and one Y chromosome, while females have two X chromosomes.
Why are women healthier than men?
Women are not necessarily healthier than men. Women on average do live 5-10 years longer than men because women have the XX chromosomes and men have the XY chromosomes. This matters because the X chromosome contains microRNA (small strands of ribonucleic acid). MicroRNA tells our genes what or what not to do. MicroRNA also plays a role in our body's immune system which can help ward off infections and cancer. A lot of this microRNA is contained in the X chromosome, basically doubling women's chances.
Does everyone have a recessive gene?
Yes. So do men. I believe it may be safe to say that any sexually reproducing individual will have at least some recessive genes. Women have 2 copys of the X chromosome, men have one copy of the Y chromosome and a single copy of the X chromosome. The Y chromosome contains much less information than the X chromosome. One of the genes on the Y chromosome is SRY this single gene prompts the body to develope into a male when the embyo is in the womb. In this case men have the gene and women don't have the gene, rather than women having a recessive copy of it. There are some XY women who have the SRY gene but lack a different gene which codes for the androgen receptors.
Why does the Y chromosome be unlikely to contain any of the genes that are absolutely necessary for survival?
Yes, the y chromosome is critical for survival, for males at least. It contains the DNA (or genes) for the genetic make up of a male's body. No, I don't think so because Y chromosomes just dermine the sex. If it was critical to life then no girl would be alive because they don't have Y chromose. Y chromosome truly determines sex. It contains SRY gene that produces TDF which makes sth to male. it not important for survival, just for prodactivity, since Y has came from X chromosome.
Why do human males have Y chromosomes?
No, males of all species do not have Y chromosomes. Some species use other chromosomes for sex determination. Some birds and insects use a ZW chromosome system for sex determination, for example. There are also species whose sex is environmentally determined. For example, the sex of some reptiles is determined by the temperature at which their eggs are incubated.
How many chromosomes do you have in a cell found in your elbow?
The X chromosome is one of the two sex chromosomes in humans (the other is the Y chromosome). The sex chromosomes form one of the 23 pairs of human chromosomes in each cell. The X chromosome spans about 155 million DNA building blocks (base pairs) and represents approximately 5 percent of the total DNA in cells. Each person normally has one pair of sex chromosomes in each cell. Females have two X chromosomes, while males have one X and one Y chromosome. Early in embryonic development in females, one of the two X chromosomes is randomly and permanently inactivated in cells other than egg cells. This phenomenon is called X-inactivation or Lyonization. X-inactivation ensures that females, like males, have one functional copy of the X chromosome in each body cell. Because X-inactivation is random, in normal females the X chromosome inherited from the mother is active in some cells, and the X chromosome inherited from the father is active in other cells. Some genes on the X chromosome escape X-inactivation. Many of these genes are located at the ends of each arm of the X chromosome in areas known as the pseudoautosomal regions. Although many genes are unique to the X chromosome, genes in the pseudoautosomal regions are present on both sex chromosomes. As a result, men and women each have two functional copies of these genes. Many genes in the pseudoautosomal regions are essential for normal development. Identifying genes on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. The X chromosome likely contains between 900 and 1,400 genes. These genes perform a variety of different roles in the body. (Note: So I believe your answer will be 46; 23x2)
What is the y chromosome?
only men have them
When one woman's egg is transplanted into another women who's genes will the embryo have?
the genes are in the egg. so the women who gave the egg will share the genes of the baby
Is it true that women have some protection from genetic disease because they carry only x chromosomes?
Yes, women have two X chromosomes which provides them with a backup copy of certain genes. This can offer some protection from genetic diseases that are caused by mutations in genes on the X chromosome, as women have a second copy that may compensate for any abnormalities.
What is a true statement about sex-linked traits?
Men normally have an X and a Y combination of sex chromosomes, while women have two X's. Since only men inherit Y chromosomes, they are the only ones to inherit Y-linked traits. Men and women can get the X-linked ones since both inherit X chromosomes.There are about 1,098 human X-linked genes. Most of them code for something other than female anatomical traits. Many of the non-sex determining X-linked genes are responsible for abnormal conditions such as hemophilia, Duchenne muscular dystrophy, fragile-X syndrome, some high blood pressure, congenital night blindness, G6PD deficiency, and the most common human genetic disorder, red-green color blindness. X-linked genes are also responsible for a common form of baldness referred to as male pattern baldness.The much smaller Y chromosome has only about 26 genes and gene families. Most of the Y chromosome genes are involved with essential cell house-keeping activities (16 genes) and sperm production (9 gene families). Only one of the Y chromosome genes, the SRY gene, is responsible for male anatomical traits.When any of the 9 genes involved in sperm production are missing or defective the result is usually very low sperm counts and subsequent infertility. About 1/3 of couples is unable to have children as a consequence of the male mate not having the necessary sperm producing genes on his Y chromosome.The Y chromosome has few active genes and mostly contains genetic junk rather than genes.
Who is Responsible for birth of daughter....Man genes or women genes?
Both the man and the woman contribute genetic material to determine the characteristics of their child. The baby's genes come from a combination of both parents, with the father providing a Y chromosome to determine the child's sex.
