Biology Mcqs

Both radial and bilateral symmetry is found in the phylum____________?

A. Protozoa
B. Porifera
C. Echinodermata
D. None of these

The radial symmetry is found in the animals of___________?

A. Protozoa
B. Porifera
C. Cnidaria
D. All of these

All of the following are coelomates except:____________?

A. Deuterosomes
B. Proterosomes
C. Hemichordates
D. Aschelminthes

Extremely long molecule of DNA that is tightly folded to fit inside the cell component is called_____________?

A. Nucleus
B. Chromosome
C. Chromatid
D. Chromatin body

Gram positive bacteria appear_______________?

A. Purple
B. Red
C. k
D. Blue

Cell wass of Archaeobacteria does not contain_____________________?

A. Peptidoglycan
B. Proteins
C. Glycoproteins
D. Polysaccharides

Cell wall is absent in___________?

A. Cocci
B. Bacilli
C. Mycobacterium
D. Mycoplasma

Which of the following structure primarily helps in attachment of bacteria on various surfaces____________?

A. Flagella
B. Pili
C. Both of these
D. None of these

Which of the following structure provides greater pathogenicity to the bacteria__________?

A. Capsule
B. Slime
C. Cell Wall
D. Cell membrane

Flagella originate from_______________?

A. Cell membrane
B. Cell wall
C. Capsule
D. Basal body