Raveena

Def­i­n­i­tion : Anti­bod­ies are immunoglob­u­lins which are pro­duced in the body in response to the anti­gen Are For­eign bod­ies. Thus all anti­bod­ies are immunoglob­u­lins but all immunoglob­u­lins are not anti­bod­ies. Loca­tion and for­ma­tion : The anti­bod­ies May be bound to a cell mem­brane or they May remain free. Anti­bod­ies are pro­duced by B lym­pho­cytes and plas­ma cells. […]

The exper­i­ment that was direct­ed at chem­i­cal char­ac­ter­i­za­tion of the genet­ic mate­r­i­al was car­ried out in 1951 — 50, 7 years after every work was pub­lished. By then exper­i­men­tal tech­niques had pro­gressed and new approach­es to prob­lem solv­ing in Genet­ics were avail­able. in par­tic­u­lar the use of bac­te­rio­phages as exper­i­men­tal tool for study­ing mol­e­c­u­lar Genetics

Kline­fel­ter syn­drome is also called XXY syn­drome or 47, XXY. This con­di­tion is char­ac­terised by the pres­ence of an extra X Chro­mo­somes in males instead of usu­al male geno­type XY, and is asso­ci­at­ed with sev­er­al phys­i­cal and devel­op­men­tal abnor­mal­i­ties.  Defect­ed males have small testes and pro­duce less restau­rant due to which phys­i­cal devel­op­ment is highly

Chro­mo­so­mal abnor­mal­i­ty referred to as in Edward syn­drome is caused due to tri­somy 18.It is man­i­fest­ed by abnor­mal­i­ty is in dif­fer­ent body parts and organs. tri­somy 18 affect the foe­tus from the time of its devel­op­ment into the uterus ‚thus the growth of the child remain retard­ed. New born babies have low birth weight and

Down syn­drome is a genet­ic con­di­tion in which an extra copy of chro­mo­some 21 is present in an indi­vid­ual. It was ini­tial­ly observed and is described by a British Doc­tor John Lang­don down in 1866 and third was called down syn­drome after his name. How­ev­er the time he could not describe the rea­son of its occurrence

OOGENESIS The process of for­ma­tion of a mature female gamete (ovum) is called Ooge­n­e­sis. It occurs in the ovaries (female gonads). it con­sists of three phas­es: mul­ti­pli­ca­tion, growth and mat­u­ra­tion (a) Mul­ti­pli­ca­tion Phase :  In the fetal devel­op­ment Cer­tain Cells in ger­mi­nal epithe­li­um of the ovary of the foe­tus a larg­er than oth­ers. The cells divide by

Pla­cen­ta is the inti­mate con­nec­tion between the foe­tus and uter­ine wall of the moth­er to exchange the mate­ri­als. The out­er sur­face of the chori­on in human devel­ops a num­ber of fin­ger like pro­jec­tion, known as chori­on­ic vil­li, which grows into the tis­sue of the uterus. These vil­li , pen­e­trate the tis­sue of the uter­ine wall