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.

#Question id: 4753

#Applied Microbiology

Pattern baldness in humans is a sex-influenced trait that is autosomes dominant in males and recessive in females. What is genotype of both parents with normal hair had one son with pattern baldness and another son is normal hair?

#Question id: 4754

#Applied Microbiology

Allele A is epistatic to allele B. Which of the following statement are incorrect?

#Question id: 4755

#Applied Microbiology

When two albino snails were crossed, all of the F1 were pigmented. All F1 intercross would results

#Question id: 4756

#Applied Microbiology

In summer squash, white colour fruit (W) is dominant over yellow colour (w) and disc-shaped phenotype (D) is dominant over sphere-shaped phenotype (d). Determine the genotype of the parents gives 3/8 white, sphere, 3/8 white, Disk, 1/8 Yellow, Disk and 1/8 Yellow, Sphere?

#Question id: 4759

#Applied Microbiology

which of the following is not a mechanism for sex determination?

#Question id: 4760

#Applied Microbiology

you set up a cross between true breeding wild type male fruit flies and true breeding female flies with a yellow body color. you notice in the f1 generation that half the flies, specifically all the males, have yellow body color while the females are wild type (gray). which of the following explanations is the most likely?