Your friends Ben and Jane are contemplating having children and seek your genetic counsel. Ben and Jane are unrelated, but both have younger brothers with the same, extremely rare genetic trait. (In fact, Ben and Jane met at a support group meeting for children and families of children with this rare disorder.) Ben’s parents and Jane’s parents are all unaffected.        

 Assume that the trait is autosomal dominant with 80% penetrance in heterozygotes and 100% penetrance in homozygotes. What is the probability that Ben and Jane’s first child will be affected? 

TLS Online TPP Program

#Question id: 20292

#Unit 7. System Physiology – Animal

Glucocorticoids is produced by which area?

a. Zona Glomerulosa 

b. Zona Fasciculata 

c. Zona Reticularis 

TLS Online TPP Program

#Question id: 20293

#Unit 7. System Physiology – Animal

Other than CRH, what can stimulate the secretion of ACTH?

TLS Online TPP Program

#Question id: 20294

#Unit 7. System Physiology – Animal

The rate-limiting step during the synthesis of all steroid hormones is done by which enzyme? 

TLS Online TPP Program

#Question id: 20295

#Unit 7. System Physiology – Animal

Catecholamines can lead to hyperglycemia due to: 

TLS Online TPP Program

#Question id: 20296

#Unit 7. System Physiology – Animal

Aldosterone acts on: 

TLS Online TPP Program

#Question id: 20297

#Unit 7. System Physiology – Animal

Hyperpigmentation is a sign of: