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In which plant vegetative propagation by leaf takes place a) Potato b) Byrophyllum c) Tomato d) Mustard

Option b) Byrophyllum. The buds are produced on the margin of the leaf when the leaves fall off; they grow... View Article

Strongest hydrogen bond is present in a) H−O…….H−O b) H−N…….H−N c) H−F…….H−F d) H−Cl…..H−Cl

Option c) H−F…….H−F. Since Fluorine features the most electronegative atom. It forms the strongest hydrogen bond.

Write few differences between umbra and penumbra

Differences between umbra and penumbra are: Umbra a) It is the darkest part of the shadow. b) It is the... View Article

State true or false: work done is equal to area under the force displacement graph

True. Work done is the product of force and the displacement in the direction of the force.

Bowmans capsule is lined by a) Non-ciliated cuboidal epithelium b) Ciliated cuboidal epithelium c) Non-ciliated columnar epithelium d) Squamous epithelium

Option d) Squamous epithelium. The inner layer is known as the visceral layer and the outer layer is known as... View Article

Cyclic photophosphorylation produces a) ATP + NADPH + O2 b) ATP c) NADPH d) ATP + NADPH

Option b) ATP. Cyclic Photophosphorylation is the process in which organisms accomplish the conversion of ADP to ATP for immediate... View Article

Name two human traits that show variations

Two human traits that show variation are: Pattern of hair – curly and straight Colours of eye – Black and... View Article

Discount allowed is a kind of deduction from _________. a) Discount account b) Account payable c) Cash account d) Account receivable

Option d) Account receivable.

An improved variety of transgenic basmati rice a) Gives high yield and is rich in vitamin A. b) Gives a high yield but has no characteristic aroma. c) Is completely resistant to all insect pests and diseases of paddy. d) Does not require chemical fertilizers and growth hormones.

Option a) Gives high yield and is rich in vitamin A.

The maximum number of equivalence relations on the set A={1,2,3} is

A relation R on a set A is said to be an equivalence relation if and only if the relation... View Article

The dual nature of radiation is shown by a) Photoelectric effect alone b) Diffraction and reflection c) Photoelectric effect and diffraction d) Refraction and diffraction

Option c) Photoelectric effect and diffraction. The particle nature of the light is explained in the photoelectric effect and wave... View Article

Oxidative phosphorylation refers to a) Production of ATP by chemiosmosis b) Alcoholic fermentation c) Anaerobic production of ATP d) The citric acid cycle production of ATP

Option a) Production of ATP by chemiosmosis. The synthesis of ATP driven by proton motive force developed during oxidation of... View Article

Consider the following statements and mark the correct option. Which of the statements given is/are correct? 1. Balaji Vishwanath introduced Saranjami system. 2. Deshmukh were equivalent to Chandilarib of North and Desais of Gujarat. 3. Baji Rao I campaigned against the Sidis of Janjira. a) Only 2 b) Only 1 and 3 c) Only 2 and 3 d) All of these

Option d) All of these.

Cleistogamous flowers are invariably autogamous because

Anther and stigma lie close to each other in the Cleistogamous flowers. Cleistogamous flowers are bisexual and cannot open even... View Article

Plants store solar energy in the form of a) thermal energy b) bio energy c) electric energy d) chemical energy

Option d) chemical energy. During the process of photosynthesis, plants trap the solar energy and convert it into chemical energy.

Light of wavelength λ falls on a metal having work function hc / λ0. The photoelectric effect will take place only if: a) λ≤λ0 b) λ≥2λ0 c) λ<λ0/2 d) λ≥λ0

Option a) λ≤λ0.

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