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Which of the following are limitations of range? a) It is not based on all the values. b) It can not be calculated for open-ended frequency distribution. c) As long as the minimum and maximum values remain unaltered, any change in other values does not affect range. d) All of these

Option d) All of these.... View Article

Prove the following sin(2π−x)=−sinx

sin (2π−x)=sin 2π sinx − cos 2π cosx =0 * sinx − 1 * cosx =0 − cosx= −cosx... View Article

Saprophytic plants lack a) Roots b) Chlorophyll c) Flowers d) Vascular tissues

Option b) Chlorophyll. Since they lack Chlorophyll, Saprophytic plants obtain energy from dead and decaying organisms.... View Article

Express your opinion about the use of DNA fingerprinting

The DNA sequences of any two individuals can be compared using DNA fingerprinting. 99.9% of the base sequences in all human beings are identical.... View Article

What are twin primes? write all pairs of twin primes between 50 and 100

Twin primes numbers are pairs of prime numbers that differ by 2. Pairs of twin primes between 50 and 100 are (59, 61) and (71, 73).... View Article

Last-in first-out method is suitable in times of __________. a) Fluctuating Prices b) Falling Prices c) Rising Prices d) None of these

Option c) Rising Prices. This method gives you the highest cost of goods sold and the lowest taxable income.... View Article

Anisotropic band is made of a) Elastin filaments b) Actin filaments c) Myosin filaments d) Both B and C

Option d) Both B and C.... View Article

Which compound is most soluble in water? a) Ethanal b) Chloroethane c) Ethanol d) Ethylene glycol

Option d) Ethylene glycol. Since more hydrogen bonds are seen in ethylene glycol, solubility in water is more.... View Article

Kranz type of anatomy is found in a) C4 plants b) C3 plants c) CAM plant d) C2 plants

Option a) C4 plants. C4 photosynthesis incorporates modified gene expression, metabolic specializations, and novel leaf anatomy.... View Article

Which of the following has the lowest ionization energy a) Nitrogen b) Fluroine c) Sulphur d) Oxygen

Option c) Sulphur. By losing one electron, sulphur can attain the half-filled state and hence achieve greater stability. Hence, sulphur has the... View Article

BIOS stands for ___. a) Binary Input Output System b) Basic Input Off system c) Basic Input-Output system d) All the above

Option a) Binary Input Output System.... View Article

Malachite is a mineral of: a) Aluminium b) Magnesium c) Iron d) Copper

Option d) Copper.... View Article

Thigmonastic movement is found in a) Drosera b) Nepenthes c) Oxalis d) Albizzia

Option d) Albizzia. Plants like Mimosa and Albizzia shows thigmonastic movement. It is the nastic or nondirectional movement shown by the plant... View Article

Who was the founder of Anuslian Samiti? a) Kanai Lal Dutta b) Satish chandra Basu c) Pulin Das d) Prafulla Chaki

Option b) Satish chandra Basu. Anushilan Samiti was one of the secret revolutionary organizations that were operating in Bengal in the first... View Article

In a lake ecosystem, the pyramid of biomass is generally a) Upright b) Horizontal c) Inverted d) Spindle-shaped

Option c) Inverted. In lake ecosystems, we can witness a gradual increase in the biomass of organisms at successive trophic levels from the... View Article

The acromion process is part of a) Pelvic girdle b) Pectoral girdle/Scapula c) Femur d) Vertebral column

Option b) Pectoral girdle/Scapula. The acromion of the scapula known as the pectoral girdle is a large bony projection found on the superior end... View Article

Rice and millets are crops a) Zaid crops b) Rabi crops c) Kharif crops d) None of these

Option c) Kharif crops. Kharif crops are grown with the onset of the monsoon season.... View Article

Function of relaxin hormone is to a) Relax uterus b) Relax ovaries c) Relax fallopian tubule d) Relax pubic symphysis

Option d) Relax pubic symphysis. Relaxin is the hormone that is secreted by the corpus luteum during each menstrual cycle in females.... View Article

The enzyme reverse transcriptase is a) RNA dependent RNA polymerase b) RNA dependent DNA Polymerase c) DNA dependent DNA polymerase d) DNA dependent RNA polymerase

Option b) RNA dependent DNA Polymerase. The enzyme reverse transcriptase is present in certain viruses which have genetic material as the RNA.... View Article

Lichens indicate pollution by a) NO2 b) CO c) O3 d) SO2

Option d) SO2. Lichens are known as the indicators of sulphur dioxide pollution. Lichens show distinct sensitivity to the presence of sulphur... View Article

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