TLS Online TPP Program

#Question id: 15011


Which of the following statements about a lethal allele is NOT correct?

#Unit 8. Inheritance Biology
  1. Lethal alleles are always recessive
  2. Lethal alleles may have a late age of onset.
  3. Lethal alleles may be caused by mutations in essential genes.
  4. Lethal alleles may affect one individual differently than another.
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TLS Online TPP Program

#Question id: 22962

#Unit 7. System Physiology – Animal

What is the relationship between calcium and PTH? 
a. When extracellular Ca2+ is decreased àCa2+ binding to the receptor àinhibits PTH secretion
b. When extracellular Ca2+ concentration is increased à Ca2+ binds to the receptor à activates phospholipase C àinhibits PTH secretion
c. When extracellular Ca2+ is decreased à Ca2+ doesn’t binds to the receptor àstimulates PTH secretion
d. When extracellular Ca2+ concentration is increased à Ca2+ binds to the receptor à activates phospholipase C àstimulates PTH secretion.

TLS Online TPP Program

#Question id: 22961

#Unit 7. System Physiology – Animal

What is the receptor class of the calcium-sensing receptors in the parathyroid gland?

TLS Online TPP Program

#Question id: 22960

#Unit 7. System Physiology – Animal

What are the types of cells found in parathyroid gland?

TLS Online TPP Program

#Question id: 22959

#Unit 7. System Physiology – Animal

The hormone that regulates the concentration of calcium & phosphorus in ECF:

TLS Online TPP Program

#Question id: 20269

#Unit 7. System Physiology – Animal

The antidiuretic hormone (ADH) originates primarily in the supraoptic nuclei of the hypothalamus, which of the following statement is FALSE regarding ADH?

TLS Online TPP Program

#Question id: 20270

#Unit 7. System Physiology – Animal

Oxytocin is formed primarily in the paraventricular nuclei of the hypothalamus. Which of the following statement is FALSE regarding oxytocin?