Which one of the following is the most likely reason of not occurring regular menstruation cycle in females?
Fertilisation of the ovum
maintenance of the hypertrophical endometrial lining
Maintenance of high concentration of sex hormones in the blood stream
Maintenance of high concentration of sex hormones in the blood stream
A.
Fertilisation of the ovum
If fertilisation occurs and the foetus is implanted in the endometrium the trophoblast cells of the developing placenta secrete a hormone human chorionic Gonadotrophic (hCG). This hormone-like LH maintains the corpus luteum and the secretion of progesterone and estradiol by it. These two hormones check the breakdown of the endometrium of the uterus. The absence of menstrual bleeding is the earilest sign of pregnancy.
Which one of the following is the correct matching of three items and their grouping category?
|
Items |
Group |
|
Malleus, incus, cochlea |
Ear ossicles |
|
Items |
Group |
|
IIium, ischium, pubis |
Coxal bones of pelvic girdle |
|
Items |
Group |
|
Actin, myosin, Rhodopsin |
Muscle proteins |
|
Items |
Group |
|
Actin, myosin, Rhodopsin |
Muscle proteins |
Which of the following is a pair of viral diseases?
Ringworm, AIDS
common cold, AIDS
Dysentery, common cold
Dysentery, common cold
Which of the following is not used as a biopesticide?
Trichoderma harzianum
Nuclear Polyhedrosis virus (NPV)
Nuclear Polyhedrosis virus (NPV)
Study the pedigree chart given below.
what does it show?
Inheritance of a sex-linked inborn error of metabolism like phenylketonuria
Inheritance of a condition like phenylketonuria as an autosomal recessive trait
The pedigree chart is wrong as this is not possible
The pedigree chart is wrong as this is not possible
Alzheimer disease in humans is associated with the deficiency of
dopamine
glutamic acid
acetylcholine
acetylcholine
