Which of the following is not true for a species?
Members of a species can interbreed
Variations occur among members of species
Each species is reproductively isolated from every other species
Gene flow does not occur between the populations of a species
D.
Gene flow does not occur between the populations of a species
Gene flow means the spread of genes through the population as affected by movements of individuals and other propagules, e.g., spores seeds, etc.
Which statement is correct for bacterial transduction?
Transfer of some genes from one bacteria to another bacteria through virus
Transfer of genes from one bacteria to another bacteria by conjugation.
Bacteria obtain DNA directly
Bacteria obtain DNA from other external sources
A.
Transfer of some genes from one bacteria to another bacteria through virus
Transduction involves the picking up of DNA by bacteriophage from one bacterial cell and carrying it to another where the DNA fragment may get incorporated into the bacterial host's genome.
One gene- one enzyme hypothesis of Beadle and Tatum was experimentally proved on
Saccharomyces
Neurospora crassa
Lathyrus odoratus
Claviceps
B.
Neurospora crassa
One gene- one enzyme theory was given by Beadle and Tatum in 1958, while they were working on red mould or Neurospora crassa (Ascomycetes fungus), which is also called Drosophila of plant kingdom.
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