D.D.T. is an important fertiliser. ………………..

D.P.T. vaccine in an example of

Thymosin plays an important role in differentiation of

Given below is an outline of the human body showing the important glands. Name the hormone secreted by part D. Give one important function of this hormone

The thymus secretes the ...... hormone called ….... which play a major role in the differentiation of ……... lymphocytes. (a) Gylcoproteinaceous , thymosin ,T (b) Steroid , thymosin , T (c) Peptide , thymosin T (d) Peptide , thymosin , B

Lines p ,\ q\ a n d\ r are concurrent. Also lines p ,\ s\ a n d\ t are concurrent. Is always true that the lines q ,\ r\ a n d\ s will be concurrent? Is it always true for lines q ,\ r\ a n d\ t ?

The function of ovary is a. To produce female gamete. b. To provide the site for fertilisation c. To provide the site for implantation d. To produce several steroid hormones (1) a and b (2) a, b and d (3) a, b and d (4) a and d

How do gametogenesis and fertilisation playan important role in maintaining constancy in chromosome number during sexual reproduction?

Osmotic pressure in a vacuolated plant cell is (a) Equal to W.P. (b) Equal to T.P. (c) More than D.P.D. (d) Less than D.P.D.

Transition metals usually from coloured complexes and d-d transitions (t_(2g)hArre_(g)) are responsible for colour as the energy difference between t_(2g) and e_(g) lies in visible region. But all the coloured ions are not dut to d-d transition but charge transfer bands also play important roles. Charge transfer bands may be of two types. (i) ligand to metal (CTLM) " "(ii) metal to ligand (CTML). Charge transfer transition always produces intense colour as compared to d-d transition. MnO_(4)^(-) is dark purple coloured though Mn is in (+VII) oxidation state with 3d^(@) configuration

Let T be the r th term of an A.P. whose first term is a and conmon difference is d . If for some positive integers m ,n, T_(n)= (1)/(m) , T_(m) = (1)/(n) then (a – d) equals