Briefly explain $\rm {IVF}$ and $\rm {ET}$, What are the conditions in which these methods are advised ?
In vitro fertilisation ( $IVF-$ fertilisation outside the body in almost similar conditions as that in the body) followed by embryo transfer $(ET$) is one of such methods.
In this method, popularly known as test tube baby programme, ova from the wife/donor (female) and sperms from the husband/donor (male) are collected and are induced to form zygote under simulated conditions in the laboratory.
The zygote or early embryos (with upto $8$ blastomeres) could then be transferred into the fallopian tube ($ZIFT -$ zygote intra fallopian transfer) and embryos with more than $8$ blastomeres, into the uterus ($IUT -$ intra uterine transfer), to complete its further development. Embryos formed by in-vivo fertilisation (fusion of gametes within the female) also could be used for such transfer to assist those females who cannot conceive.
Select the correct match of the techniques given in column $I$ with its feature given in column $II$.
column $I$ | column $II$ |
$A.$ $ICSI$ | $I$ Artificially introduction of semen into the vagina or uterus. |
$B.$ $IUI$ | $II$ Transfer of ovum collected from a donor into the fallopian tube where fertilization occur |
$C.$ $IUT$ | $III$ Formation of embryo by directly injecting sperm into the |
$D.$ $GIFT$ | $IV$ Transfer of the zygote or early embryo (with upto $8$ blastomeres) into a fallopian tube. |
$E.$ $ZIFT$ | $V$ Transfer of embryo with more than $8$ blastomeres into the uterus |
What are assisted reproductive technologies $\rm {(ART)}$ ? Give its importance and which methods come under it ?
Match the following columns
Column$-I$ | Column$- II$ |
$(A)$ Chlamydiasis | $(1)$ Chlamydia trachomatis |
$(B)$ Gonorrhoea | $(2)$ Neisseria gonorrhoeae |
$(C)$ Trichomoniasis | $(3)$ Trichomonas vaginalis |
$(D)$ Genital herpes | $(4)$ Herpes simplex virus |
$(E)$ Syphilis | $(5)$ Treponema pallidum |
$ICSI$ stands for
In this method a sperm is directly injected into the ovum in the laboratory.