General Biology Mixed Topics
Comprehensive biology test covering plant biology, cell biology, genetics, ecology, and human anatomy concepts
Questions
What is the ecological behaviour in which the animals inhabit the trees called?
- Arboreal
- Terrestrial
- Cosmopolitan
- Crepuscular
Which of the following types of root modifications is present in Beta vulgaris?
- Napiform
- Fusiform
- Conical
- Tuberous
To which of the following categories does the protein rich spirulina belong?
- Chlorophycae
- Mycoplasma
- Blue-green algae
- Bacteria
Which of the following antibacterial drugs is produced from algae?
- Penicillin
- Chlorellin
- Aspergillin
- Streptomycin
Which of the following is the correct ascending order of a hierarchy of biological organisation?
- Kingdom, species, genus and series
- Order, family, genus and species
- Species, genus, family and cohort
- Division, kingdom, family and series
Which of the following is the characteristic stipule of genus Ficus?
- Protective stipule
- Tendrilar stipule
- Ochreate stipule
- Interpetiolar stipule
Why is spirogyra called the silk of the pond?
- It forms a silky mat in water where it is present.
- It is grass which is green in colour.
- It forms oxygen bubbles during photosynthesis.
- It has a mucilagenous layer over it.
What type of interaction does the epiphytes show?
- Commensalism
- Symbiosis
- Amensalism
- Parasitism
Which of the following parts of a cell is concerned with aerobic respiration?
- Cytoplasm
- Mitochondria
- Plastids
- Lysosomes
A splash of rain plays an important role in effecting the fertilization in
- fern
- riccia
- funaria
- cycas
In which of the following plants is a ciliate type margin present?
- Zizyphus
- Bryophyllum
- Water lily
- Mentha
Which of the following test-cross ratios indicates linkage?
- 1 : 1
- 1 : 2 : 1
- 9 : 3 : 3 : 1
- 7 : 1 : 1 : 7
In a monohybrid cross, red is dominant over white (RRrr), what will be the phenotypic ratio in a cross of RR X Rr?
- 50% red
- 100% red
- 100% white
- 75% red
The correct sequence of the constituents of a food chain given below is
- field rat, grasshopper, hawk, clover
- grasshopper, field rat, clover, hawk
- hawk, grasshoper, field rat, clover
- clover, grasshoper, field rat, hawk
What does the term 'Entropy' signify with reference to the living systems?
- Gain of energy
- Loss of energy
- Transfer of energy
- Transformation of energy
In which of the following phases does the mitotic spindle get organised?
- Prophase
- Metaphase
- Anaphase
- Telophase
Why is Fungi imperfecti called so?
- The sex organs develop very late in the life cycle.
- The sexual reproductive cycle is not known.
- The nutrition is of photosynthetic type.
- The nutrition is of saprophytic type.
What is the usual method of DNA replication?
- Conservative
- Dispersive
- Non-conservative
- Semi-conservative
Which of the following valves guards the opening of aorta?
- Tricuspid valve
- Bicuspid valve
- Mitral valve
- Semilunar valve
The type of gene mutation in which a purine gets replaced by a pyrimidine and vice-versa is called
- transduction
- translation
- inversion
- transversion