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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.
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How do you use linked genes in a sentence?
Linked genes are genes located close together on the same chromosome, and they tend to be inherited together. For example, if genes for flower color and plant height are linked on the same chromosome, they are likely to be inherited together rather than independently.
Do linked genes assort independently?
No, linked genes do not assort independently. Linked genes are located close together on the same chromosome and tend to be inherited together, rather than independently assorting during meiosis.
How can one determine if two genes are linked?
Two genes are considered linked if they are located close together on the same chromosome and tend to be inherited together. This can be determined by observing the frequency at which certain traits or genetic markers are inherited together in offspring. If the genes are consistently inherited together more often than expected by chance, they are likely linked.
What are genes that do not undergo independent assortment called?
Genes that do not undergo independent assortment are linked genes. These genes are located on the same chromosome and tend to be inherited together more often than would be expected by chance.
A gene located on the X or Y chromosome is a?
Genes located on the X or Y chromosome are referred to as sex-linked genes. This is because the inheritance of these genes is dependent upon the sex of the individual. For example, only males can inherit genes located on the Y chromosome (because males have XY and females have XX).
How do you use linked genes in a sentence?
Linked genes are genes located close together on the same chromosome, and they tend to be inherited together. For example, if genes for flower color and plant height are linked on the same chromosome, they are likely to be inherited together rather than independently.
Do linked genes assort independently?
No, linked genes do not assort independently. Linked genes are located close together on the same chromosome and tend to be inherited together, rather than independently assorting during meiosis.
How can one determine if two genes are linked?
Two genes are considered linked if they are located close together on the same chromosome and tend to be inherited together. This can be determined by observing the frequency at which certain traits or genetic markers are inherited together in offspring. If the genes are consistently inherited together more often than expected by chance, they are likely linked.
What are genes that do not undergo independent assortment called?
Genes that do not undergo independent assortment are linked genes. These genes are located on the same chromosome and tend to be inherited together more often than would be expected by chance.
Why do linked genes generally NOT follow the normal pattern of inheritance?
When genes are linked, they are very likely to be inherited together - meaning that once one gene has been inherited, the chance that the other will be is not 50% (meaning it is not random like other genes). Because linked gene are not affected by crossing over. Thus these are not segregated according to the Mendel's principal of segregation.
A gene located on the X or Y chromosome is a?
Genes located on the X or Y chromosome are referred to as sex-linked genes. This is because the inheritance of these genes is dependent upon the sex of the individual. For example, only males can inherit genes located on the Y chromosome (because males have XY and females have XX).
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.
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.
What would happen if the gene for seed color and the gene for seed shape in pea plants were linked?
If the gene for seed color and the gene for seed shape in pea plants were linked, they would be inherited together more often than not. This means that the typical independent assortment seen in genes on different chromosomes would be disrupted, and the traits for seed color and shape would tend to be inherited together as a package.
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.
Two genes are almost always found in the same gamete?
Two genes that are almost always found in the same gamete are probably located near each other on the same chromosome. Crossing over is more likely to occur with genes that are farther apart on the same chromosome.
