Which enzyme is essential for unwinding the DNA double helix at the origin of replication in bacteria?
DNA polymerase
Ligase
Primase
Helicase
Related Questions
Which bacterial structure is primarily composed of polysaccharides and/or polypeptides and contributes to its virulence by enabling attachment to host tissues?
Capsule
Slime layer
Glycocalyx (including capsule and slime layer)
Fimbriae
In prokaryotic cells,
Internal compartments are absent
Nucleus is absent
Ribosomes are 70S
All of the above
Which of these structures is found in some prokaryotes but NOT in all?
Ribosomes
Cell wall
Plasma membrane
Plasmids
Bacterial cells can adhere to surfaces due to the presence of which component?
Flagella
Pili
Glycocalyx
Cytoplasm
Which of the following is NOT a characteristic feature exclusively found in prokaryotic 70S ribosomes?
Presence of 16S rRNA in the small subunit
Sensitivity to antibiotics like streptomycin
Presence of 28S rRNA
Sedimentation coefficient of 70S
The genetic material in a prokaryotic cell is located in the:
Nucleus
Nucleolus
Nucleoid
Cytoplasm
Read the following statements and select correct options for prokaryotic cells
I. They are generally smaller than eukaryotic cells
II. They multiply more rapidly than the eukaryotic cells
III. They are presented by bacteria, BGA mycoplasma and PPLO (Pleura Pneumonia Like Organism)
II and I
II and III
I and III
I, II and III
Glycocalyx (mucilage sheath) of a bacterial cell may occur in the form of a loose sheath called β¦Aβ¦ or it may be thick and tough called β¦Bβ¦ Choose the correct pair from the given option
Slime layer, Capsule
Capsule, Slime layer
Cell wall, Plasma membrane
Tonoplast, Leucoplast
In prokaryotes, genetic material is
Basically naked
Enveloped by a nuclear membrane
Associated with histones
Linear
Which of the following components provides sticky character to the bacterial cell?
Glycocalyx
Cell wall
Nuclear membrane
Plasma membrane