In spermatogenesis, reduction division of chromosome occurs during conversion of
spermatogonia to primary spermatocytes
primary spermatocytes to secondary spermatocytes
secondary spermatocytes to spermatids
spermatids to sperms
Presence of which of the following hormone in the urine confirms pregnancy?
Progesterone
Oestrogen
Human chorionic gonadotropin
Prolactin
C.
Human chorionic gonadotropin
HCG or Human Chorionic Gonadotropin presence confirms pregnancy. Upon implantation the cells of the developing blastocyst and placenta HCG is secreted. It is the most common indicator of pregnancy. The levels are usually high 10 days following conception to permit detections through the use of a home pregnancy kit.
A pregnant female delivers a baby, who suffers from stunted growth, mental retardation low intelligence quotient and abnormal skin. This is the result of
deficiency of iodine in diet
low secretion of growth hormone
cancer of the thyroid gland
over secretion of pars distalis
What is the correct sequence of sperm formation?
Spermatid, Spermatocyte, Spermatogonia, Spermatozoa
Spermatogonia, Spermatocyte, Spermatozoa, Spermatid
Spermatogonia, Spermatozoa, Spermatocyte, Spermatid
Spermatogonia, Spermatocyte, Spermatid, Spermatozoa
Which one of the following is not the function of placenta? It
facilitates supply of oxygen and nutrients to embryo
secretes oestrogen
facilitates removal of carbon dioxide and waste material from embryo
secretes oxytocin during parturition
The correct sequence of embryonic development is
Blastula - Morula - Zygote - Gastrula - Embryo
Zygote - Blastula - Morula - Gastrula - Embryo
Zygote - Morula - Blastula - Gastrula - Embryo
Gastrula - Morula - Zygote - Blastula - Embryo
If spermatogenesis proceeds too rapidly, inhibin is released. Inhibin reduces the secretion of
Luteinising Hormone (LH)
Follicle Stimulating Hormone (FSH)
Testosterone
Interstitial Cell Stimulating Hormone (ICSH)