Genes for two different traits that are located next to each other on the same chromosome would most likely be inherited together.
linked genes
No, they were actually on 4 chromosomes. Here is the quoted text: "Although it is true that Mendel could not have found more than 7 traits that could have been unlinked by virtue of the fact that the genes determining those traits reside on separate chromosomes it turns out that the traits he studied were confined to only 4 chromosomes; chromosome 1 for traits 2 and 3, chromosome 4 for traits 4, 6, and 7, chromosome 5 for trait 5, and chromosome 7 for trait 1."
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.
If the A allele represents the dominant allele at a specific locus and a represents the recessive allele for the same locus they cannot occupy the same locus on one chromosome. A heterozygous individual would have A on one chromosome and a on the other.
Traits carried on the x chromosome are said to be sex-linked
linked genes
Depending on their relative location on the chromosome the alleles will remain on the same chromosome or be separated in the crossing over part of meotic divsion. The closer they are to each other the more likely they will stay together.
If the alleles are close enough to each other they will have a very low likelihood of crossing over separately during meiosis. The farther apart they are on the chromosome the higher the likelihood they will be separated during crossing over.
No, they were actually on 4 chromosomes. Here is the quoted text: "Although it is true that Mendel could not have found more than 7 traits that could have been unlinked by virtue of the fact that the genes determining those traits reside on separate chromosomes it turns out that the traits he studied were confined to only 4 chromosomes; chromosome 1 for traits 2 and 3, chromosome 4 for traits 4, 6, and 7, chromosome 5 for trait 5, and chromosome 7 for trait 1."
same traitsthe same traits as each other. Different chromosome pairs code for different traits than other chromosome pairs do though. Only homologous chromosomes (chromosome pairs) code for the same trait as each other.
Because they olny have one X chromosome.
Sex-linked traits are found on sex chromosomes (X and Y in humans) - which means that the different sexes have different chances of having the trait.For example, if a gene is located on the Y chromosome (which few are, as it is quite small compared to the X chromosome) - then only males can have that gene.Sex-influenced traits are traits that are expressed differently in the different sexes, despite them having the same genotype. An example of this would be pattern baldness, if a male has Bb, he will go prematurely bald. However, a female with the same alleles, Bb is very unlikely to have the same kind of baldness (but it is still possible). These traits are found on the autosomes (non-sex chromosomes).
Sex-linked traits are found on sex chromosomes (X and Y in humans) - which means that the different sexes have different chances of having the trait.For example, if a gene is located on the Y chromosome (which few are, as it is quite small compared to the X chromosome) - then only males can have that gene.Sex-influenced traits are traits that are expressed differently in the different sexes, despite them having the same genotype. An example of this would be pattern baldness, if a male has Bb, he will go prematurely bald. However, a female with the same alleles, Bb is very unlikely to have the same kind of baldness (but it is still possible). These traits are found on the autosomes (non-sex chromosomes).
gene (I think...) The units of a chromosome that code for traits are genes.
Consider recessive traits on the X chromosome. Women have two of these, so it is statistically less likely that a woman would express this recessive trait and much more likely that it would be masked by a dominate X chromosome. If a male gets a recessive X from his mother ( remember, males have one X and one Y chromosome ) it is going to be expressed as there is no corresponding chromosome to mask it.
Most commonly sex linked traits are on the X chromosome, but rarely they can occur on the Y chromosome.
The parts of a chromosome that control inherited traits is referred to as genes. There are many types of inherited traits, some visible while the others are invisible,