Bacteria MCQs with Answers

The additional circular small piece of DNA in bacterial cell is called ?

• A.Mesosomes
• B.Nucleoid
• C.Plasmids
• D.Episomes

The single stranded RNA viruses causing tumors are an example of ?

• A.Papillomavirus
• B.Adenovirus
• C.Herpesvirus
• D.Retrovirus

Bacteria increase in number asexually by _?

• A.Binary fission
• B.Budding
• C.Fragmentation
• D.Conjugation

The source of restriction enzyme Sam1 is?

• A.Bacillus amyloliquefaciens
• B.Escherichia coli
• C.Haemophilus influenzae
• D.Streptococcus pyogenes

Which of the following viruses has double-stranded RNA in its core?

• A.HIV
• B.Influenza virus
• C.Hepatitis B virus
• D.Diarrhea virus

Past Paper MCQ

Which organism contains two nuclei?

• A.Amoeba
• B.Euglena
• C.Paramecium
• D.Hydra

What is a virus primarily composed of?

• A.A single nucleic acid chain and a protein coat
• B.A cell wall and cytoplasm
• C.A nucleus and mitochondria
• D.A double-stranded DNA and a lipid membrane only

Which of the following organism is found in the gut of termite and help in the digestion of wood?

• A.Trichonymphas
• B.Plasmodium
• C.Trypanosoma
• D.Paramecium

The intestinal parasite that causes amoebic dysentery in humans is _?

• A.Entamoeba histolytica
• B.Plasmodium vivax
• C.Trypanosoma gambiense
• D.Giardia lamblia

Threadworm are the most commonly encountered human host-specific nematode. The scientific name of the threadworm is _?

• A.Enterobius vermicularis
• B.Ascaris lumbricoides
• C.Ancylostoma duodenale
• D.Wuchereria bancrofti