4. Black body and vestigial wing in Drosophila are controlled by recessive alleles, b and vg, respectively. The dominant alleles, b* and vg*, produce wild-type flies with grey body and normal wing. A homozygous wild-type is crossed to a homozygous fly with black body and vestigial wing. The F1 progeny (all wild-type) is test-crossed. The F2 generation is as follows: 1930 wild type 1888 black, vestigial 412 black, normal 370 grey, vestigial
Bacterial Genomics
The study of the morphological, physiological, and evolutionary aspects of the bacterial genome is referred to as bacterial genomics. This subdisciplinary field aids in understanding how genes are assembled into genomes. Further, bacterial or microbial genomics has helped researchers in understanding the pathogenicity of bacteria and other microbes.
Transformation Experiment in Bacteria
In the discovery of genetic material, the experiment conducted by Frederick Griffith on Streptococcus pneumonia proved to be a stepping stone.
Plasmids and Vectors
The DNA molecule that exists in a circular shape and is smaller in size which is capable of its replication is called Plasmids. In other words, it is called extra-chromosomal plasmid DNA. Vectors are the molecule which is capable of carrying genetic material which can be transferred into another cell and further carry out replication and expression. Plasmids can act as vectors.
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