WorksheetsBIOLOGY QUIZ
Total questions: 20
Worksheet time: 11mins
For wheat, which of the following combinations is correct?
Genus Triticum, family Poaceae, order Poales, Class Monocotyledonae
Genus Triticum, family Poaceae, order Poales, Class Dicotyledonae
Genus Triticum, family Poaceae, order Sapindales, Class Monocotyledonae
Genus Triticum, family Anacardiaceae, order Poales, Class Monocotyledonae
Regulation of cells’ activity takes place through
Flow of substances
Flow of energy
Flow of hormones
Flow of smoke
The correct sequence of taxonomic categories is:
Species -> genus -> order -> phylum
Species -> order -> genus-> kingdom
Genus -> species -> order -> kingdom
None of these
Taxonomic hierarchy refer to
Classification of species based on the fossil record
A list of botanists or zoologists who have worked on the taxonomy of a species or group
a group of senior taxonomists who decide the nomenclature of animals and plants
Stepwise arrangement of all categories for classification of animals and plants
Nicotiana sylvestris flowers only during long days while N.tabacum flowers only during short days. Under different photoperiods, they can be induced to flower at the same time and can be cross-fertilized to produce self-fertile offsprings. What is the best reason for considering Nicotiana sylvestris and N.tabacum as separate species?
They fail to interbreed in nature
They are reproductively distinct
They are physiologically different
They are distinct morphologically
One of the first acts in taxonomy is
Description
Identification
Naming
Classification
Which one of these categories has real existence?
(a)
DNA fingerprinting recognizes the differences in
satellite DNA
bulk DNA
Repetitive DNA
both (a) and (c)
The process of DNA replication is affected by an enzyme known as
Mutase
Ligase
Polymerase 1
Ribonuclease
The bases are held together in a DNA double helix by hydrogen bonds. These bonds are
Ionic bonds
Covalent bonds
Non-covalent bonds
Van der Waals forces
The stimulation of a muscle fibre by a motor neuron occurs at the
myofibril
transverse tubules
neuromuscular junction
sarcoplasmic reticulum
What is the person with these symptoms suffering from? Outbursts of emotions, unpredictable moods, quarrelsome behaviour, conflicts with others
Mood disorders
Addictive diroders
Schizoprenia
Borderline personality disorder (BPD)
Even after the brain of a frog has been crushed, it still responds to a pinch on the leg by drawing it away. This act is an example of
Conditioned reflex
Simple reflex
Automated motor response
Neurotransmitter induced response
This statement is not associated with midbrain
the ventral portion of the midbrain is composed of mainly four, round swellings known as
corpora quadrigemina
located between thalamus of the forebrain and pons of the hindbrain
the canal called cerebral aqueduct passes through the midbrain
hindbrain and midbrain constitute the brain stem
The membrane investing the ovum just outside the membrana granulosa is
theca interna
discus proligerus
zona pellucida
vitelline membrane
Which of the following is not a major greenhouse gas?
ozone
water vapour
methane
carbondioxide
The lacunae in the vascular bundles of monocot stem is
Metaxylem
A mucilage canal
Lysigenous water cavity
A large sized protoxylem
Antiserum is
blood serum containing specific antibodies
blood serum containing specific antigens
blood serum containing a mixture of antigens and antibodies
blood serum in which antigens and antibodies are both absent
Which of this is/are examples of an organ containing a smooth muscle
Iris of eye
Bronchi only
Uterus only
All of the above
Where does spindle fibres attach to during metaphase?
kinetochore of the chromosome
kinetosome of the chromosome
centromere of the chromosome
telomere of the chromosome
