List of top Questions asked in NEET (UG)- 2013

The characteristics and an example of a synovial joint in humans is

	Characteristics	Examples
(1)	Fluid cartilage between two bones, limited movements	Knee joints
(2)	Fluid filled between two joints, provides cushion	Skull bones
(3)	Fluid filled synovial cavity between two bones	Joint between atlas and axis
(4)	Lymph filled between two bones, limited movement	Gliding joint between carpals

A diagram showing axon terminal and synapse is given. Identify correctly at least two of A-D

Parts A, B, C and D of the human eye are shown in the diagram. Select the option which gives correct identification along with its functions/ characteristics

Which of the following statement is correct in relation to the endocrine system ?

Select the answer which correctly matches the endocrine gland with the hormone it secretes and its function/ deficiency symptom

	Endocrine gland	Hormone	Function/ deficiency symptoms
(1)	Anterior pituitary	Oxytocin	Stimulates uterus contraction during child birth
(2)	Posterior pituitary	Growth Hormone (GH)	Oversecret-ion stimulates abnormal growth
(3)	Thyroid gland	Thyroxine	Lack of iodine in diet results in goitre
(4)	Corpus luteum	Testosterone	Stimulates spermatog- enesis

What is the correct sequence of sperm formation ?

Menstrual flow occurs due to lack of

Which one of the following is not the function of placenta? It

One of the legal methods of birth control is

Which of the following cannot be detected in a developing foetus by amniocentesis ?

Artificial insemination means

Which Mendelian idea is depicted by a cross in which the F₁ generation resembles both the parents ?

The incorrect statement with regard to Haemophilia is

If both parents are carriers for thalassemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child ?

The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C

Which enzyme/s will be produced in a cell in which there is a nonsense mutation in the lac Y gene ?

According to Darwin, the organic evolution is due to

The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function. This is an example of

Infection of Ascaris usually occurs by

The cell-mediated immunity inside the human body is carried out by

In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called

During sewage treatment, biogases are produced which include

A biologist studied the population of rats in a barn. He found that the average natality was 250, average mortality 240, immigration 20 and emigration 30. The net increase in population is

Which one of the following processes during decomposition is correctly described ?

A sedentary sea anemone gets attached to the shell lining of hermit crab. The association is