0
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.
What else can I help you with?
Why are males said to be hetero-gametic?
Males are considered hetero-gametic because they possess two different types of sex chromosomes: one X and one Y chromosome (XY configuration). In contrast, females have two of the same type of sex chromosome (XX configuration), making them homo-gametic. The presence of the Y chromosome in males determines male sex characteristics, while the X chromosome carries various genes that are essential for both sexes. Thus, the distinction in gametes—sperm carrying either an X or a Y chromosome—leads to the classification of males as hetero-gametic.
What combination of gametes creates a male zygote?
A male zygote is created when an X-bearing sperm from the father fertilizes an X-bearing egg from the mother, resulting in a female (XX) zygote. Alternatively, a male zygote is formed when a Y-bearing sperm fertilizes the same X-bearing egg, resulting in a male (XY) zygote. Therefore, the combination of gametes that creates a male zygote is an X egg and a Y sperm.
What is a chance that a human zygote will receive one x and one y sex chromosome during fertilization?
The chance is 50%.
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.
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.
Why are males said to be hetero-gametic?
Males are considered hetero-gametic because they possess two different types of sex chromosomes: one X and one Y chromosome (XY configuration). In contrast, females have two of the same type of sex chromosome (XX configuration), making them homo-gametic. The presence of the Y chromosome in males determines male sex characteristics, while the X chromosome carries various genes that are essential for both sexes. Thus, the distinction in gametes—sperm carrying either an X or a Y chromosome—leads to the classification of males as hetero-gametic.
What combination of gametes creates a male zygote?
A male zygote is created when an X-bearing sperm from the father fertilizes an X-bearing egg from the mother, resulting in a female (XX) zygote. Alternatively, a male zygote is formed when a Y-bearing sperm fertilizes the same X-bearing egg, resulting in a male (XY) zygote. Therefore, the combination of gametes that creates a male zygote is an X egg and a Y sperm.
During fertilization if a sperm cell containing an x chromosome combines with an egg the resulting zygote will re result in a male?
If a sperm cell containing an X chromosome combines with an egg, the resulting zygote will have two X chromosomes, typically resulting in a female. Sperm cells with a Y chromosome combine with an egg to create a zygote with one X and one Y chromosome, typically resulting in a male.
When is the the sex of a zygote determined?
In humans, the presence of a Y chromosome means the zygote will be male. So (normal) females will have XX - one X chromosome from each parent. (Normal) males will have XY - an X chromosome from their mother and a Y from their father.
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 a human zygote will receive one x and one y sex chromosomes 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 a chance that a 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 chromosome during fertilization 100 percent 25 percent 75 percent 50 percent?
The chance that a human zygote will receive one X and one Y sex chromosome during fertilization is 50 percent. This is because an individual inherits one sex chromosome from each parent, with the father contributing either an X or a Y chromosome, and the mother contributing an X chromosome.
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.
In humans a zygote will develop into a male it the?
Zygotes do not have a predetermined sex. The development of a zygote into a male or female is determined by the presence of specific sex chromosomes – XX typically leads to a female, while XY leads to a male. This determination occurs at fertilization when the sperm carrying either an X or a Y chromosome fuses with the egg.
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.
