in time and space. Enhancers activate genes on any chromosomes except the same c
ID: 194140 • Letter: I
Question
in time and space. Enhancers activate genes on any chromosomes except the same chromosome. d. Differential RNA splicing can create a family of related proteins by causing different regions of the nR a. Paracrine interactions occur when a cell or tissue secretes proteins that induce changes in neighboring b. Paracrine factors are secreted by inducing cells. These factors bind to cell membrane receptors in con to be read as exons or introns. What is an exon in one set of circumstances may be an intron in another 40. Which of the following statements is/are true? Juxtacrine interactions are inductive interactions that take place between the cell membranes of adjace cells or between a cell membrane and an extracellular matrix secreted by another cell. responding cells. Competence is the ability to bind and to respond to inducers, and it is often the resu prior induction. Competent cells respond to paracrine factors through signal transduction pathways Morphogens are secreted signaling molecules that affect gene expression differently at different concentrations c. d. Signal nnduction pathways begin with a paracrine or juntacrine factor causing a confomational its cell membrane receptor. The new shape can result in enzymatic activity in the cytoplasmic doma receptor protein. This activity allows the receptor to phosphorylate other cytoplasmic proteins. Even cascade of such reactions activates a transcription factor (or set of factors) that activates or represses gene activity. All of the above are true statements e.Explanation / Answer
Ans. The correct option is option E, that all of the above statements are true.
The Paracrine and Juxtacrine factors bounds to cell for inducing the signal transduction and leads to conformational changes in cell after binding to the cell.
Morphogens are signaling molecules which regulate gene expression.
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