Mixed Test (Biology)
A comprehensive biology test covering genetics, botany, zoology, ecology, and microbiology concepts from basic to intermediate level.
Questions
What is the correct sequence of ecological complexities?
- Biosphere, community, ecosystem, niche
- Community, niche, biosphere, ecosystem
- Niche, community, ecosystem, biosphere
- Ecosystem, biosphere, niche, community
Which of the following types of root modifications is found in radish?
- Fusiform
- Conical
- Napiform
- Tuberous
If a couple of medium height has three tall-statured children, then what could be the possible explanation for it?
- Dominant genes
- Cumulative genes
- Codominant genes
- Sex-linked genes
- None of the above
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 'locus' refer to in genetics?
- The physical expression of a character
- The genetic expression of a character
- The position of an allele on a chromosome.
- The basic unit of character inheritance
Which of the following types of stipules is present in Castor?
- Opposite stipule
- Free lateral stipule
- Interpetiolar stipule
- Ochreate stipule
Which of the following is the only artery in the body that carries deoxygenated blood?
- Aorta
- Pulmonary artery
- Hepatic artery
- Renal artery
What is the shape of lamina of leaf in vallisneria?
- Linear
- Acicular
- Oblong
- Lanceolate
According to the ecological behaviour, to which category do the sun loving plants belong?
- Photophytes
- Sciophytes
- Heliophytes
- Xerophytes
What is the function of elaters?
- Spore dispersal
- Nutrition of archaegonium
- Spore production
- Nutrition of the spore
Which of the following is the correct representation of the scientific name of tiger according to binomial nomenclature?
- Oanthera Tigris
- Lanthera Tigris
- Vanthera Tigris
- Panthera Tigris
Which one of the following ratios remains constant in the DNA of different species?
- A+T/C+G
- A+G/T+C
- A+C/T+G
- A+U/C+G
Which of the following is/are considered while doing classification in the Kingdom Fungi?
- The nature of reproductive bodies
- Cell wall material of hyphae
- Type of pigment present in mycellium
- All of these
What is the shape of the bacterium Treponema pallidium that causes syphilis?
- Bacillus
- Coccus
- Spirochaete
- Vibrio
Which of the following is a function of amyloplast?
- Storage of starch
- Trapping of light
- Absorption of water
- Storage of fats
The sporophyte of moss is mainly parasitic, but can have a nutritional autonomy by the help of
- columella
- apophysis
- trabeculae
- calyptra
Which of the following is the basic unit of classification?
- Phylum
- Family
- Genus
- Species
Algae 'volvox' is considered a colonial form and not a multicellular organism because
- all the cells are arranged in a single layer
- the cells are invested with mucilagenous layer
- the cells are able to communicate with the environment
- all the cells are joined by plasmodesmata with a clear division of labour
If a segment of a chromosome is broken and attached to the same chromosome upside down with no loss or gain of genes, then the aberration will be termed as
- deletion
- duplication
- translocation
- inversion
Which of the following pigments is a characteristic of red algae?
- Chlorophyll
- Phycocyanine
- Phycoerythrin
- Xanthophyll