List of practice Questions

Genetic engineering has been successfully used for producing

Given are cyclohexanol (I), acetic acid (II), 2, 4, 6-trinitrophenol (III) and phenol (IV). In these, the order of decreasing acidic character will be

When monochromatic radiation of intensity $I$ falls on a metal surface, the number of photoeleetrons and their maximum kinetic energy are $N$ and $T$ respectively. If the intensity of radiation is $2I$ , the number of emitted electrons and their maximum kinetic energy are respectively

Which of the following species is not electrophilic in nature ?

Chordae tendineae are found in

Male and female gametophytes are independent and free-living in

Oxidation states of $P$ in $ H_4 \, P_2 \, O_5, H_4, P_2, O_6 , H_4 P_2 O_7 $ respectively are

Secretions from which one of the following are rich in fructose, calcium and some enzymes ?

Select the correct combination of the statements(a-d) regarding the characteristics of certain organisms : (i) Methanogens are archaebacteria which produce methane in marshy area (ii) Nostoc is a filamentous blue green alga which fixes atmospheric nitrogen (iii) Chemosynthetic autotrophic bacteria synthesize cellulose from glucose (iv) Mycoplasma lack a cell wall and can survive without oxygen. The correct statements are :

Seminal plasma in human males is rich in

Sertoli cells are found in

Study the cycle shown below and select the . option which gives correct words for all the four blank A, B, C and D.

The correct floral formula of soyabean is

The first movements of the fetus and appearance of hair on its head are usually observed during which month of pregnancy?

The fruit fly Drosophila melanogaster was found to be very suitable for experimental verification of chromosomal theory of inheritance by Morgan and his colleagues because :

The genotype of a plant showing the dominant phenotype can be determined by