List of top Zoology Questions

Study the following steps involved in DNA finger printing-protocol. A) Separation of DNA fragments B) Obtaining DNA C) Denaturation of DNA D) Fragmentation of DNA E) Blotting Arrange the steps in a sequence.

The blood group of the mother is B and the progeny in the family is 25 % A blood type, 25 % AB, and 50 % B blood type. What are the genotypes of the parents?

Match the following: A) Vasectomy - I. Oral method B) Coitus interruptus - II. Barrier method C) Cervical caps - III. Surgical method D) Saheli - IV. Natural method

In Human Genome Project (HGP) the method of identifying whole set of genome contained all coding and non-coding regions is referred as:

Development of the primary oocyte stops its development until sexual maturity of that female.

Match the following: A) Pituitary gland - I. Cortisol B) Adrenal cortex - II. Insulin C) Pancreas - III. Oxytocin D) Adrenal medulla - IV. Adrenaline

Which hormone is released by posterior lobe of pituitary?

An inhibitory neurotransmitter causes:

Assertion (A): Gamete Intra Fallopian Transfer (GIFT) is recommended for woman who cannot produce ova but have a normal uterus for embryo development. Reason (R): In GIFT, an ovum collected from a donor is transferred into the fallopian tube of the recipient woman for in vivo fertilization.

Which of the following immunoglobulin (Ig) is present in colostrum?

Study the following statements regarding immune system and choose the correct statements: I. Memory B-cells are responsible for rapid and enhanced secondary immune response. II. Complement system proteins are mainly present in blood plasma and are part of adaptive immunity. III. Cell mediated immunity is mainly carried out by cytotoxic T-cells. IV. Plasma cells directly attack and phagocytose pathogens.

Assertion (A): Angina pectoris occurs due to transient myocardial ischemia without causing permanent damage to heart muscles. Reason (R): In coronary artery disease, narrowing of coronary arteries reduces blood supply to myocardium.

Study the following statements regarding digestion: Statement I: Pepsinogen secreted by chief cells of the stomach is converted into active pepsin in the presence of HCl. Statement II: Bile juice contain digestive enzymes that digest fats into fat granules.

Match the following: A) Producers - I. Herbivores B) Primary consumers - II. Green plants C) Secondary consumers - III. Saprotrophs D) Decomposers - IV. Carnivores

Study the following statements regarding contractile proteins of muscle. Identify the correct statements: I. Actin is a protein present in thin filament present in I-band of a sarcomere. II. Myosin forms the thick filament and contains ATPase activity in its tail region. III. Troponin binds calcium ions and helps in exposing the active sites on thin filament. IV. Tropomyosin actively hydrolyses ATP during muscle contraction.

Increased $CO_2$ concentration in blood primarily stimulates:

Match the following: A) ADH - I. Vasodilation B) Aldosterone - II. Converts angiotensinogen into angiotensin-I C) Renin - III. Increases water reabsorption D) ANF - IV. Increases $Na^+$ reabsorption

Charas is extracted from this plant:

Statement I: Due to presence of mitochondria, Entamoeba histolytica is a facultative anaerobe. Statement II: Entamoeba histolytica causes abscesses in the wall of large intestine of man.

Study the following and pick up the correct statements: I. In cockroach plantulae help to walk on smooth surfaces. II. Contraction of the dorso-longitudinal muscles and relaxation of the dorso-ventral muscles cause depression of wings in cockroach. III. In fat bodies of cockroach, oenocytes contain symbiotic bacteria. IV. Anal styles are jointed structures found in cockroaches.

Assertion (A): According to Gause, two species competing for the same limiting resource cannot coexist indefinitely in the same habitat. Reason (R): Competing species promote resource partitioning.

Pick up the mismatched pair:

Pick up the pollutant that cause head ache and blurred vision at lower concentration and at higher concentration, death may result.

After binary fission in Paramecium opisthe develops new:

Match the following: figure [H]

figure