Assertion (A): Standard Gel Electrophoresis is rarely used for the separation of simple lipids.

Reason (R): Lipids are biomolecules that are primarily hydrophobic and lack the net charge required for migration in an aqueous electric field.

Choose the correct option:

TLS Online TPP Program

#Question id: 34141

#Biochemistry

I. Oxytocin causes contraction of the smooth muscle of the uterus.

II. The suckling of an infant at the breast stimulates the touch receptors, the nuclei are stimulated, oxytocin is released.

III. The sensitivity of the uterine musculature to oxytocin is enhanced by estrogen.

IV. Progesterone directly stimulates myometrial contraction while simultaneously reducing oxytocin clearance.

TLS Online TPP Program

#Question id: 34142

#Biochemistry

Somatostatin inhibits the secretion of following hormones, EXCEPT?

TLS Online TPP Program

#Question id: 34146

#Biochemistry

I. Human pituitary prolactin has considerable structural similarity to human growth hormone and human chorionic somatomammotropin (hCS).

II. Structurally similar prolactin are secreted by the endometrium and by the placenta.

III. prolactin secretion is increased during pregnancy, reaching a peak at the time of parturition.

IV. The human prolactin receptor resembles the oxytocin receptor.

TLS Online TPP Program

#Question id: 34147

#Biochemistry

Which of the following statements not CORRECT regarding the mechanism and reproductive role of prolactin during lactation?

TLS Online TPP Program

#Question id: 34148

#Biochemistry

Assertion (A): Prolactin stimulates the synthesis of casein and lactalbumin during lactation without acting directly on the cell nucleus.

Reason (R): The action of prolactin is dependent on intact microtubules, suggesting involvement of cytoplasmic transport or signaling components.

Choose the correct option:

TLS Online TPP Program

#Question id: 34154

#Biochemistry

Which organelle is particularly abundant in adrenal cortex cells due to its role in steroid hormone synthesis?