FREE TEST CEE

Following are the statements with reference to 'lipids'. (a)Lipids having only single bonds are called unsaturated fatty acids (b)Lecithin is a phospholipid. (c)Trihydroxy propane is glycerol. (d)Palmitic acid has 20 carbon atoms including carboxyl carbon. (e)Arachidonic acid has 16 carbon atoms. Choose the correct answer from the options given below

During ecological succession:

Experimental verification of the chromosomal theory of inheritance was done by

According to Hugo de Vries, the mechanism of evolution is

The avena curvature is used for bioassay of:

Which of the following is the most important cause of animals and plants being driven to extinction ?

Secondary xylem and phloem in dicot stem are produced by

What is the role of RNA polymerase III in the process of transcription in Eukaryotes ?

Cell wall is absent in:

Which one of the following plants does not show plasticity?

Some dividing cells exit the cell cycle and enter vegetative inactive stage. This is called quiescent stage (G0). This process occurs at the end of

Water soluble pigments found in plant cell vacuoles are :

Frog’s heart when taken out of the body continues to beat for sometime Select the best option from following statements a) Frog is a poikilotherm. b) Frog does not have any coronary circulation. c) Heart is “Myogenic” in nature. d) heat is autoexcitable.

Which part of the tobacco plant is infected by Meloidogyne incognita?

Which part of the tobacco plant is infected by Meloidogyne incognita ?

Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of :

Which of the following statements is not correct?

Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for typhoid.

Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis? (a) It results in the formation of haploid gametes (b) Differentiation of gamete occurs after the completion of meiosis (c) Meiosis occurs continuously in a mitotically dividing stem cell population (d) It is controlled by the Luteinising hormone (LH) and Follicle Stimulating Hormone (FSH) secreted by the anterior pituitary (e) It is initiated at puberty Choose the most appropriate answer from the options given below:

In which disease does mosquito transmitted pathogen cause chronic inflammation of lymphatic vessels?

Joint Forest Management Concept was introduced in India during:

which of the following are not considered as the part of the endomemebrane system? A. Mitochondria B. ER C. Chloroplast D. golgi complex E. peroxisomes. Choose the most appropriate

What is the role of RNA polymerase III in the process of transcription in eukaryotes?

DNA precipitation out of a mixture of biomolecules can be achieved by treatment with

Which of the following statements is viroid?

Good vision depends on adequate intake of carotene rich food. Select the best option from the following statements. a. Vitamin A derivatives are formed from carotene b. The photopigments are embedded in the membrane discs of the inner segment c. Retinal is a derivative of Vitamin A. d. Retinal is a light absorbing part of all the visual photopigments Options :

Which of the following represents order of 'Horse'?

Select the correct events that occur during inspiration. (a)Contraction of diaphragm (b)Contraction of external inter-costal muscles (c)Pulmonary volume decreases (d)Intra pulmonary pressure increases

The similarity of bone structure in the forelimbs of many vertebrates is an example of

Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of following options :

Receptors for sperm binding in mammals are present on :

Which one of the following cell organelles is enclosed by a single membrane?

Name the chronic respiratory disorder caused mainly by cigarette smoking :

Which of the statements given below is not true about formation of Annual Rings in trees?

The vascular cambium normally gives rise to

Lack of relaxation between successive stimuli in sustained muscle contraction is known as :

The wings of a bird and the wings of an insect are :

Consider following features (a)Organ system level of organisation (b)Bilateral symmetry (c)True coelomates with segmentation of body Select the correct option of animal groups which possess all the above characteristics

Which among these is the correct combination of aquatic mammals ?

Nissl bodies are mainly composed of

Which of the following secretes the hormone, relaxin, during the later phase of pregnancy?

Which of the following are not the effects of Parathyroid hormone? (a) Stimulates the process of bone resorption (b) Decreases Ca2+ level in blood (c) Reabsorption of Ca2+ by renal tubules (d) Decreases the absorption of Ca2+ from digested food ( e) Increases metabolism of carbohydrates . Choose the most appropriate answer from the options given below:

The plant hormone used to destroy weeds in a field

The thickness of ozone in a column of air in the atmosphere is measured in terms of :

The anatomy of springwood shows some peculiar features. Identify the correct set of statements about springwood. (a) It is also called as the earlywood (b) In spring season cambium produces xylem elements with narrow vessels (c) It is lighter in colour (d) The springwood along with autumnwood shows alternate concentric rings forming annual rings (e) It has lower density Choose the correct answer from the options given below :

Which one of the following is the starter codon ?

When gene targetting involving gene amplification is attempted in an individual's tissue to treat disease, it is known as :

How many ATP and NADPH2 are required for the synthesis of one molecule of Glucose during Calvin cycle ?

Arrange the following events of meiosis in correct sequence a)Crossing over b)Synapsis c)Terminalisation of chaismata d)Disappearance of nucleolus

Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively?

Veneral diseases can spread through : (a)Using sterile needles (b)Transfusion of blood from infected person (c)Infected mother to foetus (d)Kissing (e)Inheritance Choose the correct answer from the options given below

The transparent lens in the human eye is held in its place by

A plant in your garden avoids photorespiratory losses, has improved water use efficiency shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilisation. In which of the following physiological groups would you assign this plant ?

Cotyledon of maize grain is called :

A colour blind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their grandson being colour blind?

Which of the following is a characteristic feature of cropland ecosystem ?

Double fertilization is exhibited by :

Alexander Von Humbolt described for the first time :

The fruit fly has 8 chromosomes (2n) in each cell. During interphase of Mitosis if the number of chromosomes at G1 phase is 8, what would be the number of chromosomes after S phase?

The device which can remove particulate matter present in the exhaust from a thermal power plant is :

In old trees the greater part of secondary xylem is dark brown and resistant to insect attack due to : (a) secretion of secondary metabolities and their deposition in the lumen of vessels. (b) deposition of organic compounds like tannins and resins in the central layers of stem. (c) deposition of suberin and aromatic substances in the outer layer of stem. (d) deposition of tannins, gum, resin and aromatic substances in the peripheral layers of stem. (e) presence of parenchyma cells, functionally active xylem elements and essential oils. Choose the correct answer from the options given below:

Phloem in gymnosperms lacks :

The number of substrate level phosphorylations in one turn of citric acid cycle is

Which of the following is an amino acid derived hormone?

Keel is the characteristic feature of flower of:

What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis ?

A river with an inflow of domestic sewage rich in organic waste may result in:

Minerals known to be required in large amounts for plant growth include:

Plants having little or no secondary growth are

Which of the following combinations is required for chemiosmosis?

Transplantation of tissues / organs fails often due to non-acceptance by the patient's body. Which type of immune –respones is responsible for such rejection

Myelin sheath is produced by

Which of the following structures is homologus to the wing of a bird?

A temporary endocrine gland in the human body is :

MALT constitutes about __________percent of the lymphoid tissue in human body.

A gene whose expression helps to identify transformed cell is known as :

Which one of the following statements in wrong?

Vital capacity of lung is______ .

Which of the following statements is incorrect?

Seed formation without fertilization in flowering plants involves the process of :