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Practice Online Test Series for JEE Main 2018 & NEET 2018
Assertion (A) : In human eye, cornea absorb UV-B radiation and a high dose of UV-B causes inflammation of Cornea.
Reason (R) : Such exposure may permanently damage tthe cornea.
Haemophilic man marries a normal woman. Their offsprings will be all
An ideal vector must have which among the followingI. An origin of replicationII. Single cloning siteIII. Have a gene encoding transcriptionIV. Have a gene encoding resistance to antibiotic Choose the correct combination
Which of the following statements correctly descirbes allosteric enzymes
Which scientist pair determined the given structure of DNA ?
Which of the following is helpful in studying sex-linked characters ?
The first step in dark reaction of photosynthesis is
Identify the correct statement regarding pBR322. It is a :
Metal retardation in man associated with sex chromosomal abnormality is usually due to
Which of the following is true about Lamarckism ?I. It was propsed by Jean Baptiste de LamarckII. It is base on use and disuse of organsIII. Principle of natural of organsIV. Inheritance of acquired characters
Which one of the following human genes has the longest stretch of DNA (~24 Mb) ?
Stellosis sea cow (Hydrodamalis gigas) was a large herbivorous marine mammals. It was the largest number of the order-Sirenia. It was discovered in :
Extinction of passenger pigeon (Ictopistus migratorius) is a result of one of the following cause
Ozone depletion stratosphere shall results in lot of side effects to atmosphere on eof them is that it
Due to imbibition, the seed coat breaks because, kernels sweli to higher degree because :
Match the following columns :
Genetically modified plants are superior to parent plants in may ways. Identify the correct effect of GMFs on human gene.
Which of the following statement is true for heterochromatinisation. It takes place
Wobble pairing takes place :
Two chromatin fibre per chromosome is present in
