Recent questions tagged 2011

Identify the correct combinations

asked Oct 27, 2013 by thanvigandhi_1

1 answer

Flightless bird with preen gland is

asked Oct 27, 2013 by thanvigandhi_1

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In Convolula the tissue present between the gut and body wall is :

asked Oct 27, 2013 by thanvigandhi_1

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Dense irregular connective tissue is found in :

asked Oct 27, 2013 by thanvigandhi_1

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One of the following Hepatitis is not transmitted parenterally :

asked Oct 27, 2013 by thanvigandhi_1

1 answer

Match the following

asked Oct 27, 2013 by thanvigandhi_1

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Which of the following statements are true about protostomes?

asked Oct 27, 2013 by thanvigandhi_1

1 answer

The correct order of plants which exhibits laticiferous cells and lysigenous cavities respectively is :

asked Oct 27, 2013 by thanvigandhi_1

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Identify wrong pair of statements from the following :

asked Oct 27, 2013 by thanvigandhi_1

1 answer

A DNA fragment of 204 A was separated by a scientist from the nuclear genome of the plant. What will be the ratio between the number of two and three hydrogen bonds formed in the components of this fragment if it contains 40% Adenine?

asked Oct 27, 2013 by thanvigandhi_1

1 answer

The ratio of chromosomal number of pollen grain of Nicotiana tobacum; endosperm cell of Oryza Sativa and root cell of Allium Cepa is

asked Oct 27, 2013 by thanvigandhi_1

1 answer

Identify the correct ratios of the following related to Bentham and Hooker's classification of plants :

asked Oct 27, 2013 by thanvigandhi_1

1 answer

Of the four plants (A,B,C and D) obswerved, 'A' was selected by mendel for his hybridization experiments, while in 'B' , shull found inbreeding depression and it is a day neutral plant. In 'C' Hugo de Vries discovered mutations. 'D' has bicollateral vascular bundles and straight embryos. Identify the characters of - A,B, C and D in correct order

asked Oct 27, 2013 by thanvigandhi_1

1 answer

A student observed a plant with stellate hairs on vegetative parts and the fruit dehiseing into many seeded mericarps. Which one of the following characters is also associated with that plant?

asked Oct 27, 2013 by thanvigandhi_1

1 answer

Identify the correct pair of statements :

asked Oct 27, 2013 by thanvigandhi_1

1 answer

Thirty seeds each of Dolichos, Pisum and Maize are kept for germination in the soil. How many cotyledons are found above the soil and below the soil respectively when all the seeds germinate?

asked Oct 27, 2013 by thanvigandhi_1

1 answer

From among the following, identify the correct order of plants which exhibit hypogynous, perigynous and epigynous flowers respectively

asked Oct 27, 2013 by thanvigandhi_1

1 answer

Identify two correct statements from the following :

asked Oct 27, 2013 by thanvigandhi_1

1 answer

Study the following lists

asked Oct 26, 2013 by thanvigandhi_1

1 answer

A student observed 31 Quisqualis plants each with 36 nodes, 15 Hibiscus plants each with 21 nodes and 77 Calotropis plants each with 11 nodes. All these plants contains leaves at every node. What will be the total number of leaves of these three plants put together?

asked Oct 26, 2013 by thanvigandhi_1

1 answer

Study the following lists

asked Oct 26, 2013 by thanvigandhi_1

1 answer

Trace the correct sequence of stages in the development of male gametophyte in Cycas, starting from microspore :

asked Oct 26, 2013 by thanvigandhi_1

1 answer

A male branch of Funaria has ten antheridia and produced a sum total of 1400 spermatozoids. What is the number of androcyte mother cells in each antheridium assuming each of the antheridia has the same number of androcytes?

asked Oct 26, 2013 by thanvigandhi_1

1 answer

Two filaments of spirogyra aplanospora are observed. One of the filaments has 150 cells another contains 225 cells. If all the cells in both the filaments are involved in asexual reproduction, what is the ratio of new filaments developed from them?

asked Oct 26, 2013 by thanvigandhi_1

1 answer

Study the following statements

asked Oct 26, 2013 by thanvigandhi_1

1 answer

The number of $F_2$ plants found similar to $F_1$ phenotype and genotypes, respectively in a total of 128 plants in $F_2$ progeny of a Mendelian dihybrid cross :

asked Oct 26, 2013 by thanvigandhi_1

1 answer

In a hydrophyte, the submerged leaves compensate for the roots. That plant belongs to the category of

asked Oct 26, 2013 by thanvigandhi_1

1 answer

Identify the plant having both spongy petiole and submerged assimilatory roots

asked Oct 26, 2013 by thanvigandhi_1

1 answer

Identify the following plants with reference to the number of phloem strands in their roots :

asked Oct 26, 2013 by thanvigandhi_1

1 answer

Study the following combinations and identify the correct matches

asked Oct 26, 2013 by thanvigandhi_1

1 answer

Which of the following disease is caused by a fungus?

asked Oct 26, 2013 by thanvigandhi_1

1 answer

Single cell protein produced from one of the following microbes is rich in methionine :

asked Oct 26, 2013 by thanvigandhi_1

1 answer

Study the following lists

asked Oct 26, 2013 by thanvigandhi_1

1 answer

Study the following lists

asked Oct 25, 2013 by thanvigandhi_1

1 answer

From the phytohormones given below, identify the pairs which have mutually opposite influence on seed germination , stem elongation and stomatal movement respectively :

asked Oct 25, 2013 by thanvigandhi_1

1 answer

The nucleotide sequence on antisense strand of DNA which is transcribed as codon that specifies the amino acid serine is

asked Oct 25, 2013 by thanvigandhi_1

1 answer

Assertion (A) : Reduced coenzyme formed in the oxidation of isocitric acid accounts for more ATP production in electron transport than the reduced coenzyme formed in succinic acid oxidation. Reasons (R) : In the reoxidation of mitochondrial NADH, the number of protons translocated from matrix to intermembrane space is less than the protons translocated when $FADH_2$ is oxidized.

asked Oct 25, 2013 by thanvigandhi_1

1 answer

The number of ATP required in excess to assimilate atmosphere $CO_2$ to four molecules of triose phosphates in $C_4$ plants as compared to $C_3$ plants is

asked Oct 25, 2013 by thanvigandhi_1

1 answer

If 8 molecules of Ribulose 1, 5-bisphosphate molecules are oxygenated by RUBISCO, how many PGA molecules are ultimately available to PCR cycle in photosynthetic carbon oxidation cycle?

asked Oct 25, 2013 by thanvigandhi_1

1 answer

A student has taken 6000 molecules of Fructose 1, 6-bisphosphate and 2 molecules of Aldolase into an enzyme reaction mixture to determine its activity. After 5 minutes, 50% substrate was found converted into products. Then, what is the TON of Aldolase and the total number of trioses formed by the enzyme action at the end of 5 minutes?

asked Oct 25, 2013 by thanvigandhi_1

1 answer

Study the following combinations and identify the correct matches related to the role of essential mineral elements in plants :

asked Oct 25, 2013 by thanvigandhi_1

1 answer

The number of stomata and epidermal cell in $ 1 mm^2$ area of abaxial surface of the leaves of A, B , C and D plants are given below. Identify the plant having the least stomatal index :

asked Oct 25, 2013 by thanvigandhi_1

1 answer

Study the following table showing the components of water potential of three mesophyll cells - A,B and C

asked Oct 25, 2013 by thanvigandhi_1

1 answer

Study the following lists with reference to transmission of viral diseases

asked Oct 25, 2013 by thanvigandhi_1

1 answer

Which of the following pair is correct?

asked Oct 25, 2013 by thanvigandhi_1

1 answer

Study the following lists

asked Oct 25, 2013 by thanvigandhi_1

1 answer

With the reference to the diagram given, the van der walls redius is equal to :

asked Sep 26, 2013 by meena.p

1 answer

In the Born-Haber cycle of the given reaction $Na(s)$$ +\large \frac{1}{2}$$ Cl_2 \to NaCl(s)$ the number of endothermic and exothermic stages respectively are:

asked Sep 26, 2013 by meena.p

1 answer

In which one of the following, the bond angle is the lowest?

asked Sep 26, 2013 by meena.p

1 answer

If the uncertainty in velocities of two particles A and B with mass $1.0 \times 10^{-27}\;kg$ and $1.0 \times 10^{-31}\;kg$ respectively is the same , the ratio of uncertainty in the positions of A and B is :

asked Sep 25, 2013 by meena.p

1 answer

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