281.
Which is autotrophic and prokaryotic
A
Sulphur bacterium
B
Cyanobacterium
C
Agrobacterium
D
Archebacterium
Answer :
Cyanobacterium
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
282.
Blue-green algae are
A
Prokaryotes
B
Acellular
C
Actinomycetes
D
Eukaryotes
Answer :
Prokaryotes
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
283.
Steroid is
A
Cholesterol
B
Thyroxine
C
Vitamin A
D
Fatty acid ester
Answer :
Cholesterol
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
284.
Angiosperms (dicotyledons) were distinguished into archichlyamydae and metachlamydae by
A
Candolle
B
Hutchinson
C
Engler and Prantl
D
None of the above
Answer :
Engler and Prantl
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
285.
Nif genes occur in
A
Rhizobium
B
Aspergillus
C
Penicillium
D
Streptococcus
Answer :
Rhizobium
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
286.
A division is formed by combining several
A
Orders
B
Families
C
Classes
D
Tribes
Answer :
Classes
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
287.
Which one of the following sequence is correct
A
Problem, defining, hypothesis, observation, experiment
B
Observation, problem, hypothesis, defining, experiment
C
Observation, problem, defining, hypothesis, experiment
D
Experiment hypothesis, problem, defining, observation,
Answer :
Observation, problem, hypothesis, defining, experiment
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
288.
Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinu and showing affiniteis with Angiosperms
A
Perianth and two integuments
B
Embryo development and apical meristem
C
Absence of resin duct and leaf venation
D
Presence of vessel elements and absence of archegonia
Answer :
Presence of vessel elements and absence of archegonia
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
289.
Sequence of which of the following is used to know the phylogeny
A
M - RNA
B
R - RNA
C
T - RNA
D
DNA
Answer :
R - RNA
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
290.
Water is essential for bryophyta
A
For fertilization and homospores nature
B
Water should be filled in archegonium for fertilization
C
Water in necessary for movement of sperm
D
For dissemination spores
Answer :
Water in necessary for movement of sperm
Discuss Question
No explanation is given for this question. Let's discuss the answer together.