Which of the following statements is incorrect? Down-regulation may occur if a hormone is present in excess. Down- regulation results in an increase in the number of target-cell receptors. In up-regulation, a target cell becomes more sensitive to a hormone. If a hormone is present in excess, the number of target cell receptors decreases.

"Down- regulation results in an increase in the number of target-cell receptors" statements is incorrect.

Option: B

Explanation:

The generation of gene products with the biological context of organisms: down-regulation is a mechanism by which a cell reduces the amount of a cellular product, such as RNA or protein, in accordance to an external stimulus, for instance, on type 2 diabetes, insulin receptors may be downregulated.

The supplementary process involving these component increments is called up-regulation. Enhanced uterine oxytocin receptors occur in pregnancy's third trimester, inducing a contraction of the smooth uterine muscle.

answer; i believe the correct answer is ( proteins );

interphase   is the cell cycle stage in which the cell acquires nutrients, creates and uses proteins and other molecules and starts the process of cell division by replicating the dna. it is the longest stage in the eukaryote cell cycle.

the following   can go wrong during interphase:   a base pair could be mismatched during the duplication process causing a mutation.   correct answer: c

explanation: