Mohamed Abbas, a science teacher at Senioritis.io

Mohamed Abbas
June 21, 2023
Virology

Discovering Viruses: The Groundbreaking Work of Dmitri Ivanovsky

What scientist is responsible for first discovering viruses (specifically, tobacco mosaic virus)…even though he called it a small bacteria or spore? Dimitri Ivanovski The scientist responsible for...

Mohamed Abbas
June 21, 2023
Virology

Unraveling the History of the Word ‘Virus’: From ‘Contagium Vivum Fluidum’ to ‘Biological Toxic Chemical’

Who first described the virus as “virus” as some kind of “biological toxic chemical”? Martinus Beijerinck The term “virus” was first coined by a Dutch microbiologist named...

Mohamed Abbas
June 21, 2023
Virology

Essential Role of Capsid in Viral Infection and Virulence

The protein subunits that surround the nucleic acid of a virus are known as what? capsomeres The protein subunits that surround the nucleic acid of a virus...

Mohamed Abbas
June 21, 2023
Virology

Arthropod-borne Viruses: Transmission and Prevention Methods

Arthropods typically serve as which mechanism of transmission of viruses? biological vector Arthropods serve as vectors or carriers of viruses, such as mosquitoes, ticks, and fleas. These...

Mohamed Abbas
June 21, 2023
Virology

Lysogenic Cycle of Bacteriophages and the Role of Prophages in Host Cell Activation

In the lysogenic cycle of bacteriophages, the integrated phage genome is known as what? prophage In the lysogenic cycle of bacteriophages, the integrated phage genome is known...

Mohamed Abbas
June 21, 2023
Virology

Retroviruses: The Significance and Challenges of Provirus Integration in Host Genomes

In retroviruses, the integrated phage genome is known as what? provirus It is important to note that retroviruses do not contain phage genomes as they are a...

Mohamed Abbas
June 21, 2023
Virology

Transduction: The Mechanism of Horizontal Gene Transfer via Bacteriophages

Which mechanism of horizontal gene transfer relies on the use of viruses? transduction The mechanism of horizontal gene transfer that relies on the use of viruses is...

Mohamed Abbas
June 21, 2023
Virology

Transcription of (-)ssRNA by RdRP: Critical Step in RNA Virus Life Cycle

(-)ssRNA is transcribed into (+)ssRNA using what? RNA polymerase encoded by the virus (-)ssRNA (negative sense single-stranded RNA) molecules are transcribed into (+)ssRNA (positive sense single-stranded RNA)...