0
What is that chance that one of your non sex chromosomes is an enacct copy ot the same chromosome possed by your maternal grandmother?
The chance is 25%. Each individual inherits one set of chromosomes from each parent, so you have a 50% chance of inheriting a specific chromosome from your maternal grandmother. Since non-sex chromosomes come in pairs, the chance of inheriting an exact copy of one specific chromosome from your maternal grandmother is 25%.
What else can I help you with?
What is the chance an X chromosome is inherited from a mother?
A female has the sex chromosomes XX. Therefore they will always pass an X chromosome on to their children.
How the 2 sex chromosomes compare to each other in female fruit flies?
There is a 50% chance of having a male or a female each time sex chromosomes and inherited. the 'X' chromosome is received from the mother. The 'Y' chromosome is received from the father.
What is the probablilty that a human sperm cell will carry an X chromosome?
The male gamete is comprised, on average, of 50% of the X chromosome and 50% of the Y chromosome.
What is the role of sex chromosomes in the control of gender and inheritance of hemophilia?
There are two sex chromosomes - X and Y. A person with two X chromosomes is female and a person with one X chromosome and one Y chromosome is male. One sex chromosome is inherited from each parent, with the sperm determining a child's sex.Hemophilia is a sex-linked condition as these genes are located on a sex chromosome (i.e. Y chromosome). Males are hence more prone to hemophilia as they only have one X chromosome. The sons of a carrier female have a 50% chance of suffering from hemophilia. The daughters of a hemophiliac father and a carrier mother may be affected, where she receives an affected X from both parents.
How does sexual reproduction creates variety?
Crossing overIndependent assortmentRandom fertilizationMutation1. Crossing overCrossing over is the exchange of corresponding segments of non-sister chromatids of homologous chromosomes. During prophase I (of meisosis I), homologous chromosomes synapse to form aggregates called either bivalents (bi = 2, and there are two homologous chromosomes in the aggregate) or tetrads (tetra = 4, and there are 4 chromatids in the aggregate). While the chromosomes are synapsed in prophase I, crossing over occurs. As a result, a chromatid that originally consisted of 100% maternal alleles and a chromatid that originally consisted of 100% paternal alleles become chromatids with a mixture of both maternal and paternal alleles. This shuffles genetic information and increases variation.2. Independent assortmentIn metaphase I (of meiosis I), the tetrads (bivalents) line up at the center of the cell. Which pole the maternal and paternal chromosomes face is a matter of chance; and the direction the maternal and paternal chromosomes face in one tetrad has no bearing on which way the maternal and paternal chromosomes of another tetrad face. Thus, when the homologous chromosomes separate and move to opposite poles, each pole will receive a mix of maternal and paternal chromosomes. This shuffles genetic information and increases variation.3. Random fertilizationBecause of the above processes, male animals can potentially produce millions or hundreds of millions of genetically unique sperm. And, male animals typically release millions of sperm during sex. Which one of the millions of genetically unique sperm happens to end up fertilizing the egg is largely a matter of chance. Thus, except foridentical twins, siblings never have exactly the same genetic information.4 Mutation takes place during replication of DNA which result in new varieties .
What is the chance an X chromosome is inherited from a mother?
A female has the sex chromosomes XX. Therefore they will always pass an X chromosome on to their children.
How the 2 sex chromosomes compare to each other in female fruit flies?
There is a 50% chance of having a male or a female each time sex chromosomes and inherited. the 'X' chromosome is received from the mother. The 'Y' chromosome is received from the father.
Why are male mutation rates higher than female?
This is because mutations occur in x chromosomes. The male, who has "xy" sex chromosomes, will have the mutation if it is present in the x chromosome. Females, there is a smaller chance because there are two "xx" chromosomes, which reduces the chance that the mutation will be present.
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 probablilty that a human sperm cell will carry an X chromosome?
The male gamete is comprised, on average, of 50% of the X chromosome and 50% of the Y chromosome.
Why is there the chance that half of the zygotes will be female and the other half will be male?
The reason the chance of a zygote being a male of female is the same is due to simple genetics. Females only possess the X chromosome while males posses both an X chromosome and a Y chromosome. Since females only have an X chromosome they can only "give" an X chromosome while a male may give either an X or Y chromosome.
Why are traits controlled by recessive alleles on the X chromosome are more common in males than in females?
Males only have one X chromosome, so even if the gene on that chromosome is recessive there is no other gene that could dominate it. Females have two X chromosomes, so if the gene on that chromosome is recessive there is still a chance that the gene on the other chromosome could be dominate and override it.
What is the role of sex chromosomes in the control of gender and inheritance of hemophilia?
There are two sex chromosomes - X and Y. A person with two X chromosomes is female and a person with one X chromosome and one Y chromosome is male. One sex chromosome is inherited from each parent, with the sperm determining a child's sex.Hemophilia is a sex-linked condition as these genes are located on a sex chromosome (i.e. Y chromosome). Males are hence more prone to hemophilia as they only have one X chromosome. The sons of a carrier female have a 50% chance of suffering from hemophilia. The daughters of a hemophiliac father and a carrier mother may be affected, where she receives an affected X from both parents.
Traits controlled by recessive alleles on the x chromosome are more common in males than in females explain why?
Males only have one X chromosome, so even if the gene on that chromosome is recessive there is no other gene that could dominate it. Females have two X chromosomes, so if the gene on that chromosome is recessive there is still a chance that the gene on the other chromosome could be dominate and override it.
Why didn't Mendel observe linkage?
Mendel did not observe linkage because, by chance, he chose traits whose genes resided on different chromosomes. Genes on different chromosomes assort independently. To answer the question of 'Who discovered gene linkage?'...The answer is British geneticists William Bateson and Reginald Punnett.
When a child is incarcerated does the maternal grandmother have more rights to the children than the paternal grandfather if the father is not on the birth certificate?
You don't say which of the parents that are incarcerated but their rights to the child comes first. If the father is not in the birth certificate and he has not established paternity to the court so he can petition for visitation or custody and also pay child support, there is nothing that legally says he is the father. Then the maternal grandmother would have a better chance. If the father is not in the birth certificate but he has established paternity to the court so he can petition for visitation or custody and also pay child support, the chance should be equal.
Why do human births have a 50 percent chance being a boy or a girl?
Human births have approximately a 50 percent chance of being a boy or a girl due to the mechanisms of sex determination, which involves the combination of X and Y chromosomes from the parents. Males typically have one X and one Y chromosome (XY), while females have two X chromosomes (XX). During conception, an egg from the mother, which always carries an X chromosome, is fertilized by a sperm from the father, which can carry either an X or a Y chromosome. This random combination results in roughly equal probabilities of producing male or female offspring.
