Chromosomal theory of inheritance

Genetics as it applies to evolution, molecular biology, and medical aspects.

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prmccar
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Chromosomal theory of inheritance

Post by prmccar » Wed Dec 16, 2009 11:55 pm

How is linkage related to chromosomal theory of inheritance?

tempust
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Post by tempust » Thu Dec 17, 2009 1:47 am

The chromosomal theory is basically that genes are inherited on chromosomes, right? A linkage group is the collection of genes on a chromosome that are linked (like, inherited together). The locus is where the gene is on a chromosome. So during meiosis, crossing over of the loci can happen, which would change gene linkages.
Right?
Just my thoughts. Dunno if they helped any.
:)

Darby
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Post by Darby » Fri Dec 18, 2009 4:59 pm

This is a historical question, right-?

When linkage was first discovered, it was just known that collections were passed on as clustered groups. The idea that a small number of chromosomes could carry a large collection of genes also suggested that many genes would be passed on as collections. Linkage supported the theory.

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