FREE TEST CEE

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

Select the mismatch :

What is the role of NAD+ in cellular respiration?

Under normal physiological conditions in human being every 100 ml of oxygenated blood can deliver ________ ml of O2 to the tissues.

In context of Amniocentesis, which of the following statement is incorrect?50

The vascular cambium normally gives rise to

Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action?

Which of the following RNAs should be most abundant in animal cell

The DNA molecules to which the gene of interest is integrated for cloning is called:

Thiobacillus is a group of bacteria helpful in carrying out

Which of the following is not observed during apoplastic pathway ?

The amount of nutrients, such as carbon, nitrogen, phosphorus and calcium present in the soil at any given time, is referred as :

Which of the following pairs of hormones are not antagonistic [having opposite effects] to each other?

Family Fabaceae differs from Solanaceae and Liliaceae. With respect to the stamens, pick out the characteristics specific to family. Fabaceae but not found in Solanaceae or Liliaceae.

In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as

Hypersecretion of Growth Hormone in adults does not cause further increase in height, because :

Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in the plants :

Perigynous flowers are found in:

DNA fingerprinting involves identifying differences in some specific regions in DNA sequence, called as

Select the correct statements with reference to chordates. A. Presence of mid-dorsal, solid and double nerve cord. B. Presence of closed circulatory system C. Presence of paired pharyngeal gillslits D. Presence of dorsal heart E. Triploblastic pseudocoelomate animals Choose the correct answer from the options given below:

Specialised epidermal cells surrounding the guard cells are called :

Which of the following statements is correct?

Thalassemia and sickle cell anemia are caused due to a problem in globin molecule synthesis. Select the correct statement.

A baby boy aged two years is admitted to play school and passes through a dental check-up. The dentist observed that boy had twenty teeth. Which teeth were absent ?

Photosensitive compound in human eye is made up of:

It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?

Which of the following events is not associated with ovulation in human female?

Read the following statements. (a)Metagenesis is observed in Helminths. (b)Echinoderms are triploblastic and coelomate animals. (c)Round worms have organ-system level of body organization. (d)Comb plates present in ctenophores help in digestion. (e)Water vascular system is characteristic of Echinoderms. Choose the correct answer from the options given below.

Microtubules are the constituents of :

Extrusion of second polar body from egg nucleus occurs :

Which of the following algae contains mannitol as reserve food material?

Identify the incorrect pair

Gemmae are present in

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

Name the pulmonary disease in which alveolar surface area involved in gas exchange is drastically reduced due to damage in the alveolar walls :

The chitinous exoskeleton of arthropods is formed by the polymerisation of :

While explaining interspecific interaction of population, (+) sign is assigned for beneficial interaction, (–) sign is assigned for detrimental interaction and (0) for neutral interaction. Which of the following interactions can be assigned (+) for one specifies and (–) for another specifies involved in the interaction ?

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

The coconut water from tender coconut represents:

If there are 999 bases in 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 ?

Which of the following is an occupational respiratory disorder?

A childless couple can be assisted to have a child through a technique called GIFT. The full form of this technique is:

Given below are two statements : Statement I : The primary CO2 acceptor in C4 plants is phosphoenolpyruvate and is found in the mesophyll cells. Statement II : Mesophyll cells of C4 plants lack RuBisCo enzyme. In the light of the above statements, choose the correct answer from the options given below:

Which among these is the correct combination of aquatic mammals ?

Which of the following featrues is not present in the Phylum - Arthropoda ?

Which one of the following will accelerate phosphorus cycle?

Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology (MOET)?

Placentation in which ovules develop on the inner wall of the ovary or in peripheral part, is

Which of the following layers in an antral follicle is acellular?

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 :

From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask

Which of the following is not a feature of the plasmids?

Which one of the following is not an inclusion body found in prokaryotes?

What is the net gain of ATP when each molecule of glucose is converted to two molecules of pyruvic acid?

Which of the following statements is wrong for viroids?

The unique mammalian characteristics are :

Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are included in the kingdom:

In which group of organisms the cells walls form two thin overlapping shells which fit together?

Which of the following is not an objective of Biofortification in crops?

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

In an E. Coli strain i gene gets mutated and its product can not bind the inducer molecule. If growth medium is provided with lactose, what will be the outcome?

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

Which one of the following statements is wrong ?

Select the wrong statement :

Which one of the following plants shows vexillary aestivation and diadelphous stamens?

In higher vertebrates, the immune system can distinguish self – cells and non – self. If this property is lost due to genetic abnormality and it attacks self – cells, then it leads to:

The standard petal of papilionaceous corolla is also called:

Hormones secreted by the placenta to maintain pregnancy are

Doctors use stethoscope to hear the sound; produced during each cardiac cycle. The second sound is heard when:

Which of the following is not an application of PCR (Polymerase Chain Reaction)?

In relation to Gross primary productivity and Net primary productivity of an ecosystem, which one of the following statements is correct?

What is the site of perception of photoperiod necessary for induction of flowering in plants?

Which of the following is incorrectly matched?

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:

During ecological succession:

A column of water within xylem vessels of tall trees does not break under its weight because of :

The amino acid Tryptophan is the precursor for the synthesis of:

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

Which of the following elements is responsible for maintaining turgor in cells?

Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (Bt) is resistant to