MEDIUM
Earn 100

Thermococcus, Methanococcus and Methanobacterium exemplify:
(a)Archaebacteria that contain protein homologous to eukaryotic core histones
(b)Archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled
(c)Bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria
(d)Bacteria that contain a cytoskeleton and ribosomes

50% studentsanswered this correctly
Important Questions on Biological Classification
EASY

EASY

EASY

EASY

EASY

EASY

EASY

EASY
I. Cyanobacteria are referred to as blue-green algae.
II. They perform oxygenic photosynthesis in chloroplasts.
II. The red-colour of red-sea is due to the presence of a cyanobacterial species Trichodesmium erythraeum.
IV. All the cyanobacterial species can fix atmospheric in specialised cells called heterocysts.

EASY

EASY

EASY

EASY

EASY

EASY

EASY

MEDIUM
Study the following statements
Archaea and Eukarya are more closely related to each other than bacteria
Whittaker placed unicellular eukaryotic organisms in the Kingdom Monera
Carl Woes replaced Kingdom Monera with two Kingdoms Bacteria and Archaea
subunit of ribosomal is used in the identification of Microbes
In the above, incorrect statements are

MEDIUM
Match the following lists:
List-I | List-II | ||
(A) | Photoautotroph | (I) | Nitrosomonas |
(B) | Chemoautotroph | (II) | Rhodospirillum |
(C) | Photoheterotroph | (III) | Salmonella |
(D) | Chemoheterotroph | (IV) | Chlorobium |
The correct match is:

MEDIUM

EASY

EASY

