In prokaryotes several mechanisms viz., transformation, conjugation and transduction have been described that mediate the formation of new recombinants. Transformation refers to transfer of relatively small segment of naked DNA from a donor cell (male) to the recipient (female) cell. Conjugation is the process of gene transfer between cells of opposite mating types that are in physical contact with each [...]
In this article we will discuss about:- 1. Definition of DNA Replication 2. Enzymes Involved In DNA Replication 3. Mechanism 4. Models 5. Watson and Crick's Model. Contents: Definition of DNA Replication Enzymes Involved In DNA Replication Mechanism of DNA Replication Models for DNA Replication Watson and Crick's Model for DNA Replication 1. Definition of Replication of DNA: One of [...]
The below mentioned article provides notes on overlapping gene. In 1940s, Beadle and Tatum proposed one-gene-one protein hypothesis which explains that one gene encodes for one protein. However, if one gene consists of 1,500 base pairs, a protein of 500 amino acids in length would be synthesized. In addition, if the same sequence read in two different ways, two different [...]