List of practice Questions

Study the following statements and identify the correct combinations :
In flowering plants, a mature female gametophyte is derived from the megaspore mother cell by:
Protein toxin produced by Bacillus thuringiensis that kill corn borer
Gynaecomastia is a symptom of
Which of the following enzymes is secreted by the stomach and helps in protein digestion?
Which among the following diseases is caused by a protozoan?
In which of the following pairs both plants exhibit epigynous flowers and axile placentation?
In Herbarium sheets, label provides information about
Choose the incorrect statement:
Identify the flatworms among the following non-chordate animals:

I. Euspongia
II. Aurelia
III. Beroe
IV. Taenia
V. Wuchereria
VI. Convoluta
Pick the incorrect match.
These structures of human heart are functional in embryonic stage, but are non functional in adult stage.
Pick up the mononuclear phagocyte.
Cells primarily involved in humoral immunity are
Assertion (A): External fertilization occurs in Angiosperms.
Reason (R): In internal fertilization organisms, egg is formed inside female body.
Identify the correct option from the following
Choose the correct statements among the following
I) Many desert plants show CAM photosynthesis.
II) Rotation of planet on its axis causes seasonal changes.
III) Ecology is concerned with the changes in the environmental conditions.
IV) Mechanical tissues are well developed in submerged water plants.
Assertion (A): Natural ecosystems perform fundamental life support services, without life would cease.
Reason (R): The dependence on the ecosystems is poorly understood and they can provide life enhancing services.
Shrinkage of protoplast due to diffusion of water from the cell into the surroundings.
Which of the following statements about competition are correct?
I) The competitive exclusion principle states that species with identical niches can coexist indefinitely.
II) Resource partitioning reduces competition by allowing species to use resources differently.
III) Unrelated species can compete, if they rely on the same unlimited resources.
IV) Competitive release occurs when a species expands its niche after a competitor's removal.
Study the following regarding types of flagellae and identify the correct statements
Statements:
I. Stichonematic flagellae possess a single row of lateral appendages.
II. Pantonematic flagellae are completely devoid of mastigonemes.
III. Acronematic flagellae have a naked terminal part of the axoneme.
IV. Pantacronematic flagellae are completely devoid of terminal naked filament.
Spirochete bacterium causes this disease in human beings
Assertion (A) : Genetic drift always increases genetic diversity in small populations.
Reason (R) : Founder effect and Bottleneck effect exemplify the genetic drift.
Identify the correct option from the following
The phenomenon of a single gene product may produce more than one effect so that a single gene may be related to more than one character.
Choose the correct statement among the following
I. Validity of GM research and safety of introducing GMO has to be given by GEAC.
II. Molecular farming means utilization of plants as biofactories for obtaining commercially useful products.
III. Basmati Rice variety is a transgenic plant with improved nutritional value.
IV. “Flavr savr” is suitable for food storage technology.
Taxonomic hierarchy includes the following obligate categories:
Class, Family, Kingdom, Order, Species, Phylum, Genus
Arrange them in correct sequence.