List of top Zoology Questions asked in TS EAMCET

It is a catadromous fish

Consider the following. Assertion (A): In blood banks, clotting of blood is prevented by adding citrates or oxalates of sodium. Reason (R): Citrates or oxalates bind to Ca$^{2+}$ ions and prevent the activation of prothrombin.

Reason for right side shift of oxygen--haemoglobin dissociation curve is

Consider the following. Assertion (A): The size of a population for any species is not a static parameter. Reason (R): The density of population in a given habitat during a given period fluctuates due to changes in four basic processes.

Refractive region of ommatidium of cockroach

Choose the mismatched pair regarding cockroach.

Study the following and identify the correct statements.
• In cockroach, sub-oesophageal ganglion is the principal sensory centre.
• Ventral nerve cord of cockroach has only nine ganglia along its length.
• The images formed by ommatidia in nocturnal insects are called superposition images.
• During expiration, thoracic spiracles are kept open and abdominal spiracles are kept closed in cockroach.

Consider the following statements. Statement I: Cannabinoids are being abused by sports persons (doping). Statement II: Cocaine is involved in the transport of neurotransmitter dopamine.

Consider the following statements. Assertion (A): To control malaria, mosquitoes are to be eradicated. Reason (R): Mode of infection of Plasmodium is by inoculation through female Anopheles mosquito.

Drugs extracted from Papaver somniferum are

Molluscs with closed type of blood circulatory system are included in the class

Chordates share these features with echinoderms.

Consider the following statements. Statement I: In protozoans, gliding locomotion is brought about by myonemes. Statement II: Generally, in protozoans, asexual reproduction takes place during unfavourable conditions.

Symmetry of sea anemone is

Consider the following statements. Statement I: Radially symmetrical animals are generally sluggish. Statement II: In human body, kidneys are retroperitoneal organs.

Number of amino acids in human insulin:

Choose the mismatched pair:

Study the following and choose the correct statement: I. Sickle cell anemia is due to replacement of glutamic acid in 6th position by valine II. Thalassemia is sex linked disorder due to recessive genes III. Down syndrome is an allosomal disorder IV. Phenylketonuria is due to mutation of the gene-PAH in chromosome 12

Seymouria is an intermediate form between:

In an E.E.G, this type of waves are present in the persons who are drowsy/sleepy with closed eyes:

Ernst Haeckel proposed the:

Consider the following statements: Statement I: Evolution of species in a single lineage is called anagenesis Statement II: If speciation takes place due to geographical isolation, it is called allopatric speciation

Deficiency of the blood clotting factor VIII results in:

Macrophages present in connective tissues are

If mother is carrier for haemophilia and father is normal, chance of their children to be haemophilic is: