NEET Zoology Questions

Cannabinoids are a group of chemicals, which interact with cannabinoid receptors present principally _________.

Correct sequence of passage of milk from mammary alveoli is _______

Bacteria like ______ and ______ are responsible for the disease pneumonia in humans which infects the alveoli of the lungs

Assertion: Use of condom is a safeguard against AIDS and sexual diseases besides checking pregnancy. Reason: Certain contraceptives are planted under the skin of the upper arm to prevent pregnancy.

________ represent one such group of viruses which cause one of the most infectious human ailments — the common cold

Match the following hominids with the correct brain size.

A. Homo habilis

B. Homo neanderthalensis

C. Homo erectus

D. Homo sapiens | 1. 900 cc 2. 1350 cc 3. 650–800 cc 4. 1400 cc

Assertion: Generally, a woman does not conceive during lactation period. Reason: The hormone prolactin initiates and maintains lactation in a woman.

Somatic neural system and autonomic neural system are the two divisions of

A chronic disorder caused due to excessive cigarette smoking and damage to walls of alveoli resulting in reduced surface area for exchange of gases is called

Match column I with column II and select the correct option from the given codes.

Which one of the following invertebrates is a protostomic, bilateral symmetric and pseudocoelomate:

Animals possess various type of symmetry, select the correctly matched:

Given below are four statements:

Select the group of organism given below those have diploblastic members only:

Which substances are reabsorbed actively in nephron?

Read the following statements and select the correct option. A. If a country has small number of pre reproductive individuals followed by a large number of reproductive individuals then it shows negative growth. B. Bell shaped pyramid shows stable growth.

Choose the incorrect statement. (1) Basophils secrete histamine, serotonin, heparin and are involved in inflammatory reactions (2) Eosinophils resist infections and are associated with allergic reactions (3) Megakaryocytes are cell fragments responsible for immune responses of the body (4) Neutrophils and monocytes are phagocytic in nature

Choose the reversible reaction of glycolysis from the following.

Alfred Hershey and Martha Chase provided the unequivocal proof that DNA is the genetic material while working with:

In the given food chain maximum energy is present at which trophic level?

Select the correct match w.r.t. different methods of contraception.

Which of the following are included in barrier method?

Select the correct option w.r.t. frogs.

Which part of nephron is not situated in the cortical region of the kidney?

The correct set for porifera is :

Which of the following is not observed during contraction of a muscle fibre? (1) A bands retain the length (2) Shortening of sarcomere (3) I band gets reduced (4) H zone retains the length

Read the following statement having two blanks A and B. In cockroach, a ring of 6-8 blind tubules called (A) is present at the junction of foregut and midgut while at the junction of midgut and hindgut a ring of 100-150 yellow coloured thin filamentous (B) is present. The one correct option that fills the two blanks is

In micro injection :

The carbon dioxide is transported via blood to lungs mostly

Transmission of a nerve impulse across is very similar to impulse conduction along a single axon.

Consider the following statements. Statement (A): The malignant malaria is caused by Plasmodium falciparum. Statement (B): The malarial parasite reproduces sexually in the liver cells, bursting the cells and releasing sporozoites into the blood. In the light of above statements, select the correct option.

Which among the given hormones would enter the target cell and interact with intracellular receptors to exert its function? (1) Insulin (2) Glucagon (3) Testosterone (4) Epinephrine

From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in

If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?

Condensation of chromosomes occurs in

Identify the incorrect statement. (1) DNA is wrapped around the histone octamer to form a structure called nucleosome. (2) Nucleosomes constitute the repeating unit of a structure in nucleus called chromatin. (3) The nucleosomes in chromatin are seen as 'beads-on-string' structure when viewed under compound microscope. (4) Chromatin is thread-like stained (coloured) bodies seen in nucleus.

Triploblastic, metamerically segmented, dioecious and coelomate animals are

Which of the following terms describe human dentition?

Select the incorrect match w.r.t. hormone, its source gland and function. (1) Hormone-Melatonin, Source-Pineal gland, Function – Regulates diurnal rhythm (2) Hormone-Thyroxin, Source-Thyroid gland, Function-Regulates basal metabolic rate (3) Hormone-Insulin, Source-Pancreas, Function-Regulates blood glucose level (4) Hormone-CCK, Source-Gastro-intestinal tract, Function-Stimulates secretion of pancreatic enzymes and release of bile juice from gall bladder

Which of the following statements is true about RBCs in humans?

Select the incorrect match from the following.

A female with normal vision whose father was colourblind is married to normal male. What is the probability of female child being a carrier of colour blindness?

Incorrect statement w.r.t human reproduction is (1) Capacitation occurs in female reproductive tract. (2) Fertilization is feasible if both sperm and ovum are transported simultaneously to the ampullary region of fallopian tube. (3) Circulating levels of estrogen and progesterone in females regulates the changes in GnRH pulse frequency. (4) In females, meiosis-I completes at the time of birth.

The partial pressure of oxygen and carbon dioxide in vena cavae are respectively

Which of the following groups contains uricotelic animals only?

All of the following statements are correct w.r.t. periodic abstinence, except

Match the abnormal conditions given in Column I with their explanations given in Column II and choose the correct option.

Which of the following is correct w.r.t. an adult human under normal physiological conditions?

Respiratory quotient (RQ) value of protein is

Match the phylum given in column - I with their example given in column - II and choose the correct option.