The sex of a fetus can be determined by exami | vedclass

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(A) The sex of a fetus can be determined by amniocentesis,a procedure where amniotic fluid is collected. In female mammals,one of the two $X$ chromoso

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Barr bodies

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(A) The sex of a fetus can be determined by amniocentesis,a procedure where amniotic fluid is collected. In female mammals,one of the two $X$ chromosomes is inactivated and condensed into a structure known as a $Barr$ body,which can be observed in the nuclei of somatic cells. Since males have only one $X$ chromosome,they do not possess $Barr$ bodies. Therefore,the presence of $Barr$ bodies in the cells of the amniotic fluid indicates a female fetus,while their absence indicates a male fetus.

Column-$I$	Column-$II$
$A$. Parturition	$1$. Attachment of blastocyst to endometrium
$B$. Gestation	$2$. Release of egg from Graafian follicle
$C$. Ovulation	$3$. Delivery of baby from uterus
$D$. Implantation	$4$. Duration between pregnancy and birth
$E$. Conception	$5$. Formation of zygote by fusion of the egg and sperm

The sex of a fetus can be determined by examining the cells of the amniotic fluid for the presence of:

Similar Questions

Select the incorrect statement.

Give differences between:
$(a)$ Testis and ovary
$(b)$ Sperm cell and ovum (egg) cell

Which of the following is $NOT$ a secondary sexual characteristic in females?

Give differences between:
$(A)$ Spermatogenesis and Oogenesis
$(B)$ Embryo development and Foetus development

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