In this article we will discuss about the introduction and intron, exon structure of split genes. Introduction to Split Genes: It has been generally believed that a gene is a continuous, uninterrupted sequence of nucleotides which codes for a single polypeptide chain. Some recent work has shown that this may not always be so. The sequences of some eukaryotic genes [...]
In this article we will discuss about the concept of gene conversion. In eukaryotes reciprocal exchange between loci almost always produces reciprocal recombinants. In Neurospora the linear arrangement of ascospores in the ascus indicates directly which strands have exchanged segments during crossing over. Thus after meiosis in a heterozygote Aa, due to reciprocal exchange the 8 ascospores are arranged in [...]
The below mentioned article provides a note on overlapping genes. It is now becoming apparent that in both prokaryotes and eukaryotes a nucleotide sequence can code for more than one protein. The nucleotide sequence of a gene may be translated into a complete polypeptide chain. Then a part of the same sequence may also code for another protein of a [...]