Question

The most common bacteria shapes are ______, ______, and _______

Transformation is a form of ________ gene transmission

Sedimentary deposits known as _______ were formed by mats of ancient prokaryote known as cyanobacteria

Some species of prokaryotes play a vital role both in productivity and in nutrient _______, providing substances to all other life forms.

Explain the difference between horizontal and vertical gene transfer in prokaryotes.

Answer 1

The most common bacteria shapes are COCCI, BACILLI and SPIRILLA.

Transformation is a form of EXOGENOUS gene transmission.

Sedimentary deposits known as STROMATOLITES were formed by mats of ancient prokarytes known as cyanobacteria.

Some species of prokaryotes play a vital role both in productivity and in nutrient CYCLING, provoding substances to all other life forms.

Horizontal gene transfer is transmission of genetic material not involed with sexual reproduction and indpendent knowledge of species boundries. For instance, gene transfer from plant to soil bacterium. Vertical gene transfer is transmission of genetic material by sexual reproduction between same or related species on to following next generation. For example, gene transfer via pollen between plants.