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What is the y chromosome?
only men have them
Which chromosome is found only in males?
Y chromosome
What type of sex chromosome will be contained by the sex cells of a female giraffe?
X chromosome only
Are men x or y chromosomes?
There is much more DNA in the X chromosome. The Y has genes for addition growth and most of the testosterone that the body makes. A person can live with only one X but here are no people without the X and only the Y.
Why does a sex-linked trait only require one recessive allele on the X chromosome of a male to show the phenotype?
because the male only inherits one X chromosome (from his mother), his other sex chromosome is Y (from his father)
What is the y chromosome?
only men have them
Which chromosome is found only in males?
Y chromosome
How can genetic counselors predict genetic disorders?
Well certain disorders are found on certain chromosomes and on certain parts of the chromosome. How they find out how, i don't know. But if some pieces of a specific chromosome they can predict they will have a certain disorder
What are genes carried on the X chromosome?
A gene that is found on the X chromosome and not the Y chromosome is a sex-linked gene. That is why men tend to get only certain diseases. For instance, certain types of color blindness are recessive and carried only on the X chromosome. So if the mother carries the gene, then if the father donates another X, thus creating a daughter, then she will likely not have color blindness, since the father's X chromosome should balance it out if he doesn't have color blindness. However, a son with the affected gene from the mother would be certain to get it since that is the only gene he has concerning the red and green vision receptors.
what cell contain only one sex chromosome?
In males, sperm contain only one sex chromosome. In females, eggs contain only one sex chromosome.
What is different between a chromosome and a chromatid?
Chromosome need 2 chromatids but a chromatid is only half of a chromosome
Does an x chromosome looks the same as a y chromosome?
No. An 'X' chromosome looks like an 'X'. The 'Y' chromosome looks like a deformed 'X'. It is noticeably different to an 'X' chromosome. Also, the 'Y' chromosome is only a third of the size of an 'X' chromosome - an 'X' chromosome is 155 million base pares, while the 'Y' chromosome is only 58 million base pairs.
What has most likely occured if a chromosome lacks certain genes?
A deletion
The Y chromosome is larger and carries fewer genes than the X chromosome?
No. The Y chromosome is much smaller than the X chromosome. There are only about 70 active genes on the Y chromosome and many more deleteriously mutated one. The X chromosome contains many more active genes and only crosses over marginally with the Y chromosome.
Why were only certain people mummified?
Because the certain number of people that were mummified were royal or had a lot of money.
What is the y-chromosome?
The Y chromosome is the one that carries male genetics. It pairs with the X chromosome that carries female genetics. All males have an XY pair whereas females have an XX pair of chromosomes.The y chromosome is one variation of the two possible sex chromosomes in humans and other mammals. All people have at least one y chromosome. The difference is that women have two homologous y chromosomes and men have one y chromosome and one smaller x chromosome matched with it. It is commonly thought to code for certain sexual characteristics and developmental traits.
Which genetic disease is it when someone only has a y chromosome but no x chromosome?
That isn't physically possible. All XO individuals are females with Turner's syndrome. Individuals with only a Y chromosome do not survive.
