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Why are sex linked genes inherited differently than non sex linked genes?
Wiki User
∙ 14y ago
In human cells, each cell nucleus contains pairs of chromosomes where one half of the pair is inherited from the mother (in the egg) and the other half inherited from the father (in the sperm).
Sperm and eggs are produced by a special cell division process called 'meiosis' which tears the chromosome pair in the parent's cell nucleus into 2 halves, each half going into a separate sperm or egg.
The sex chromosomes in humans (and may other but not allorganisms) are labeled:-
'X' and 'Y'. Male cells contain the pair 'XY' and Female cell contain the pair 'XX'
Thus when males produce sperm and the chromosome pair is torn in half, 50% end up with the 'Y' half and and 50% with the 'X' half.
If a 'Y' sperm fertilizes the egg the offspring will be male, if the 'X' sperm fertilizes the egg the offspring will be female.
Thus as the sex related genes are found along the length of the sex chromosomes, in males the genes that inherited on the Y chromosome are different from those in females. The key is that the sex linked genes are located on DIFFERENT chromosomes.
Wiki User
∙ 14y ago
Sex-linked genes are located on the sex chromosomes (X and Y), which are inherited differently between males and females. Males have one X and one Y chromosome, while females have two X chromosomes. This means that sex-linked traits expressed on these chromosomes can be passed down differently depending on the sex of the parent carrying the gene. In contrast, non-sex-linked genes are located on autosomal chromosomes and are inherited equally between males and females without the influence of sex chromosomes.
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A gene located on the X or Y chromosome is a?
A gene located on the X or Y chromosome is a sex-linked gene. These genes are responsible for traits that are carried on the sex chromosomes and can be inherited differently between males and females.
What is the opposite of independent assortment?
The opposite of independent assortment is dependent assortment, which occurs when genes located close to each other on the same chromosome are inherited together more often than expected by chance. This is due to the genes being physically linked on the same chromosome and not assorting independently during meiosis.
If a characteristic is sex-linked then where is the gene for it found?
Genes for sex-linked traits can be found on the sex chromosomes - X and Y. Almost all sex-linked traits are determined by the X chromosome, because it is much larger than the Y chromosome and can thus carry more genes. A few sex-linked traits are known on the Y chromosome, including - believe it or not - hairy ears.
Most sex-linked genes are found on which chromosome x y?
Many sex-linked genes are found on the X chromosome. More than 100 sex-linked genetic disorders have now been mapped to the X chromosome. The human Y chromosome is much smaller than the X chromosome and appears to contain only few genes.
Sex-linked genes are usually found in which chromosome?
Sex linked genes are located on the sex chromosomes.
How is red-green color blindness inherited?
Red-green color blindness is usually inherited through a recessive gene located on the X chromosome. This means that the condition is more common in males, as they only have one X chromosome. Females can be carriers of the gene without showing symptoms.
Thomas hunt Morgan discovered that some genes violated the principle of independent assortment?
Yes, Thomas Hunt Morgan discovered that some genes violate the principle of independent assortment through his work with fruit flies. He found cases of genes being linked on the same chromosome and therefore inherited together more often than predicted by Mendel's laws. This discovery led to the development of the concept of genetic linkage.
If a characteristic is sex-linked then where is the gene for it found?
Genes for sex-linked traits can be found on the sex chromosomes - X and Y. Almost all sex-linked traits are determined by the X chromosome, because it is much larger than the Y chromosome and can thus carry more genes. A few sex-linked traits are known on the Y chromosome, including - believe it or not - hairy ears.
Most sex-linked genes are found on which chromosome x y?
Many sex-linked genes are found on the X chromosome. More than 100 sex-linked genetic disorders have now been mapped to the X chromosome. The human Y chromosome is much smaller than the X chromosome and appears to contain only few genes.
How to gain my height?
Your height will be mostly a matter of the Genes you inherited and your diet. Not much other than staying healthy that you can do about that.
Why is colorblindness found to be inherited into males more than females?
Most color deficiencies are sex linked, meaning the defective genes are on the sex chromosome. In this case, the X chromosome is affected. Since males only have one X chromosome, all males with this particular defective genes will have this condition. Females have 2 X's, it's unlikely that both X's have bad genes at the same time.
An example of a sex-linked trait?
Red-green color blindness is an example of a sex-linked trait. It is more common in males because the gene associated with red-green color blindness is located on the X chromosome, and males have only one X chromosome. Females are less likely to be color blind because they have two X chromosomes, which provides a backup copy of the gene.
Why do X linked genes have a different inheritance pattern than autosomal disorders?
Because ur stupid
What is hybrid inheritance?
I think it means that an animal has inherited genes of more than one animal type, like it's parents are a cross
A gene located on the X or Y chromosome is a?
A gene located on the X or Y chromosome is a sex-linked gene. These genes are responsible for traits that are carried on the sex chromosomes and can be inherited differently between males and females.
Sex-linked genes are usually found in which chromosome?
Sex linked genes are located on the sex chromosomes.
What is a is a sex-linked trait?
If a gene is found on the X chromosome ( and, less commomly on the Y chromosome), it is said to be a sex-linked trait. Because the gene controlling the trait is located on the sex chromosome, sex linkage is linked to the gender of the individual. Usually such genes are found on the X chromosome. The Y chromosome is thus missing such genes (See Diagram above.). The result is that females will have two copies of the sex-linked gene while males will only have one copy of this gene. If the gene is recessive, then males only need one such recessive gene to have a sex-linked trait rather than the customary two recessive genes for traits that are not sex-linked. This is why males exhibit some traits more frequently than females.
