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The words homozygous and heterozygous don't apply to the chromosomes that you have but instead refer to the differing alleles (versions) of a gene you have. For example if you have a brown hair allele and a blond hair allele, you are said to be heterozygous for the hair colour gene. If you have two of the same allele you are said to be homozygous. As such one person will heterozygous for some of the thousands of human genes and homozygous for others. If you are XY it means you are male, and XX means you are female.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoQuestion does not make sense.
The terms heterozygous and homozygous apply mainly to allelic combinations.
Saying that someone is homozygous or heterozygous without specifying a particular gene or phenotypical description does not make sense.
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What is a chance that a human zygote will receive one x and one y sex chromosome during fertilization?
The chance is 50%.
Can you live with a y-chromosome and no x-chromosome?
No. The human X chromosome contains over 1000 genes, many of which are essential for life. The Y chromosome in comparison has only about 120 genes. A zygote with Y0 or YY (one or two Y chromosomes) would not be viable.
A zygote is best described as what?
A zygote is the initial cell developed through sexual reproduction and formed when two gametes come together. In other words, a zygote results when the female egg is fertilized. After rapid cell division, it eventually becomes an embryo.
How could a zygote be produced with an XYY karyotype?
An XYY zygote can be formed if a pair of sex chromosomes fails to separate during meiosis, so the gamete formed has both the X and Y chromosomes. This gamete would then meet the other gamete from the other cell that would contain a Y sex chromosome. The resulting zygote that is formed would have XYY sex chromosomes. This abnormalty where there is an extra chromosome or is missing a chromosome is called nondisjunction.
What type of sex chromosomes can human egg cells have?
Human eggs usually have one X chromosome. The mother has only two X's and can't give the egg any other than a X. The male determines the sex of the zygote since he will give either a Y or X.
In humans a zygote will develop into a male it the?
egg contributes an X chromosome and the sperm contributes a Y chromosome.
What is the chance a human zygote will receive one X and one Y chromosome during fertilization?
The chance is 50%.
What is the chance that human zygote will receive one X and one Y sex chromosome during fertilization?
The chance is 50%.
What is the chance that a human zygote will receive one x and one y sex chromosomes during fertilization?
The chance is 50%.
What is a chance that a human zygote will receive one x and one y sex chromosome during fertilization?
The chance is 50%.
Can you live with a y-chromosome and no x-chromosome?
No. The human X chromosome contains over 1000 genes, many of which are essential for life. The Y chromosome in comparison has only about 120 genes. A zygote with Y0 or YY (one or two Y chromosomes) would not be viable.
What does the 23Rd chromosome represent?
The 23rd chromosome is the sex chromosome. It is either an X or Y (strictly male) chromosome. When the sperm and egg cells fuse, they combine into 46 chromosomes with either two X chromosomes or an XY pairing. If it is 2 X chromosomes, the zygote is a female. If it is an XY pairing, the zygote is a male.
A zygote is best described as what?
A zygote is the initial cell developed through sexual reproduction and formed when two gametes come together. In other words, a zygote results when the female egg is fertilized. After rapid cell division, it eventually becomes an embryo.
When is the the sex of a zygote determined?
Sex is determined by the sperm cell that fertalized it. The egg supplies an X chromosome, and the sperm cell supplieds an X or a Y chromosome. If the result is XX, it is female, if it is XY, it is male.
How could a zygote be produced with an XYY karyotype?
An XYY zygote can be formed if a pair of sex chromosomes fails to separate during meiosis, so the gamete formed has both the X and Y chromosomes. This gamete would then meet the other gamete from the other cell that would contain a Y sex chromosome. The resulting zygote that is formed would have XYY sex chromosomes. This abnormalty where there is an extra chromosome or is missing a chromosome is called nondisjunction.
What is the chance that a human zygote will receive one X and one Y sex chromosome during fertilization 100 percent 25 percent 75 percent 50 percent?
Fifty percent. All eggs contain an X chromosome. Sperm are either X or Y, and are usually present in equal numbers.
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