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How is chromosome gene linkage and exception to the law of independent assortment?
Wiki User
∙ 7y ago
Independent assortment can take place only if genes are located on different homologous chromosomes .Mendel was lucky because 7 traits he studied were located on different homologous chromosomes .Bateson 1906 noted first deviation from Mendles law and it was explained by Morgan . Linked genes can't assort independently as they are transfered en block .
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoIndependent assortment can take place only if genes are located on different homologous chromosomes. Mendel was lucky because 7 traits he studied were located on different homologous chromosomes. Bateson 1906 noted the first deviation from Mendle's law and it was explained by Morgan: linked genes can't assort independently as they are transfered en block .
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What concept is considered an exception to Mendel's law of independent assortment?
Gene linkage us considered an exception to Mendel's Law of Independent Assortment.
Do genes on the same chromosome separate?
they are in the same linkage group
What is linkage disequilibrium?
Linkage disequilibrium is the non-random association of alleles at two or more loci. It is broken down by recombination. Linkage equilibrium = independence between allele frequencies at two different SNPs Linkage disequilibrium = Association between alleles at different SNPs (SNPs are Single Nucleotide Polymorphism - Pronounced snips)
How does linkage affect the inheritance of traits?
As in sex linkage?Well if a trait is sex linked then one gender may be more likely to have that trait than the other. For example, colour blindness is a trait that is linked to the X chromosome. So males are more likely to be colour blind than females because the colour blindness gene is recessive and males only have 1 X chromosome where as females have 2 X chromosomes. Though females may be carriers of the colour blindness chromosome, therefore potentially passing it on to their children (son or daughter).
34 What is genetic linkage?
When two or more genes are so close together on the chromosome that they hardly ever cross over and are linked in the gametes where they form multiple expressions in the zygote of their linked traits.
What concept is considered an exception to Mendel's law of independent assortment?
Gene linkage us considered an exception to Mendel's Law of Independent Assortment.
What is the theory behind gene linkage?
a. the heterozygote should have the dominant phenotype b. the law of independent assortment always prevails c. genes that reside on the same chromosome should be passed together during meiosis dominant alleles should be passed together to the gametes e. segregation leads to new combinations of alleles in the gametes
Why does the law of independent assortment relates to crossing over and genetic linkage by?
This recombination of genes, called the crossing over of DNA, can cause alleles previously on the same chromosome to be separated and end up in different daughter cells. The farther the two alleles are apart, the greater the chance that a cross-over event may occur between them, and the greater the chance that the alleles are separated. - See more at: http://www.chacha.com/question/if-mendel's-law-of-independent-assortment-states-that-allele-pairs-separate-independently-of-each-other-during-meiosis.-how-does-this-law-relate-to-crossing-over-and-genetic-linkage#sthash.pJkZU4x9.dpuf
All of the genes located on a given chromosome comprise a a karyotype b bridging cross c wild-type allele d linkage group e none of these?
linkage group, which is all the genes on a chromosome. linkage group, which is all the genes on a chromosome.
The occurrence of a number of genes on the same chromosome?
Linkage.
All of the genes located on a given chromosome comprise a?
linkage group
Do genes on the same chromosome separate?
they are in the same linkage group
How might Mendel's conclusions have differed if he had studied two traits determined by alleles carried on the same chromosome?
One of the laws that he assumed was that of independent assortment, in that genes will become transferred independently of one another. Molecular genetics and linkage maps show that if the genes were close together on the same chromosome, they are "linked" and will travel together. Thus, instead of observing multiple traits occurring "randomly" in his pea plants, he might have come to the conclusion that the seed texture depended on seed color. Got the answer from Yahoo! Answers. Hope this helps!
2 How many linkage groups are there in humans?
A LINKAGE GROUP IS FORMED OF ALL THE GENES ON ONE CHROMOSOME. THERE ARE 23 PAIRS OF CHROMOSOMES IN HUMANS. HENCE 23 LINKAGE GROUPS.
What information does linkage map provide?
the distance between genes on the same chromosome
What information does a linkage map provide?
the distance between genes on the same chromosome
Does linkage refer to how the acids in DNA are connected?
Linkage is called gene linkage .It refers to linking up of genes in a chromosome .It was first properly explained by T.H. Morgan . As there are thousands of genes but number of chromosomes are limited hence each chromosome contains a large number of linked genes .
