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20463 Gynaecology & Obstetrics

Apoptosis can occur by change in hormone levels in the ovarian cycle. When there is no fertilization of the ovum, the endometrial cells die because:

AThe involution of corpus luteum causes estradiol and progesterone levels to fall dramatically
BLH levels rise after ovulation
CEstradiol levels are not involved in the LH surge phenomenon
DEstradiol inhibits the induction of the progesterone receptor in the endometrium
Gynaecology & Obstetrics
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20465 Biochemistry

About O2 dissociation curve, true is

AAffinity of O2 with Hb decreases as Hb attaches to O2 in linear fashion
B1 Hb attaches to 2 molecules of 2,3 DPG
CO2 affinity will be equal in both HbF and HbA in the absence of 2, 3DPG
DCarboxy Hb increases releases of O2 in blood (shift O2 dissociation curve to right)
Biochemistry
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