The X chromosome information is expressed than the y chromosome so what ever X chromosome is passed to the male offspring it will be expressed in the male. Rarely it is ever expressed in female offspring because that chromosome with sex-trait is less dominant than the other X-chromosome she has.
Sex- linked traits are those where the genes are found on the X and Y chromosomes. Colorblindness and male pattern baldness are the most well-known sex-link traits.
Women have two X chromosomes. Men have one X and one Y, but the Y chromosome has fewer genes than the X. These differences help account for different patterns of inheritance than non-sex-linked traits.
Using pedigree analysis, you can determine a trait is sex-linked or not. If a trait is inherited by all sons of a male who has a trait and all daughter don't have the trait including their mother, this trait should be y-linked. To determine an X-liked trait is a little bit tricky, because there are many pattern in inheriting this type of trait.
-Some of the pattern can be considered X-linked recessive :
1) If the mother has the trait but the father doesn't, all of the sons have the trait and the daughter (all) don't have the trait.
2) If the mother is not showing the trait and the father showing the trait. Half of the daughter showing the trait none of the son showing the trait.
3) If the mother and father are not showing the trait but half of the son showing the trait.
-Some of pattern can be considered to X-linked dominant :
1) if the mother is showing the trait and the father is not showing the trait. All of the kids are showing the trait.
2) if the mother is showing the trait and the father is not showing the trait. half of the sons are showing the trait.
3) if the father is showing the trait, the mother is not showing the trait. All of the daughters are showing the trait.
A sex linked trait is inherited by the parents passing on the gene/trait through sex
Females have 2 X chromosomes so the X-linked genes follow the same rules of dominance & recessivity as the genes on the autosomes.
No, the traits Mendel studied (by chance) were all controlled by single genes. There are some traits that depend on interactions between multiple genes, sometimes even on different chromosomes. The phenotypes they generate are much more difficult to match to genotypes and inheritance than Mendel's laws directly explain.
Inheritance all traits is independent, according to the Law of inheritance, unless there is linkage in the genes.
genes
No. Natural selection is the differential reproductive success of varying inherited traits. Acquired traits do little to affect the inheritance of traits, except through epigenetics.
Individual alleles control the inheritance of traits. Some alleles are dominant, while others recessive.
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The most dominant traits are the ones that control organisms genes.
The inheritance of traits is controlled in organisms by genes. These genes come from either one or two parents. The alleles determine what traits are dominant or recessive in the new organism.
No, the traits Mendel studied (by chance) were all controlled by single genes. There are some traits that depend on interactions between multiple genes, sometimes even on different chromosomes. The phenotypes they generate are much more difficult to match to genotypes and inheritance than Mendel's laws directly explain.
phenotype
Gregor Mendel was a biologist who studied the inheritance of traits. His laws for this inheritance are combined in Mendelian inheritance, which states that some alleles are dominant and as such some traits are dominant.
what are traits and inheritance
It explains the simplest form of genetic inheritance involving traits controlled by single genes having only dominant and recessive alleles. It does not directly explain genetic inheritance involving more complex traits (e.g. multiple interacting genes, genes having many different alleles, gene suppression).
He didn't learn about it, he discovered it. He grew lots and lots of pea plants and found that the inheritance of traits had numeric proportions.
Inheritance all traits is independent, according to the Law of inheritance, unless there is linkage in the genes.
genes
Inheritance of genes.