In some cases, a hormone is unable to have its effect unless the target cell has a simultaneous exposure to a second hormone. which is the term for this type of effect?
a, synergistic
b, antagonistic
c, symbiotic
d, permissive

The correct answer is option D. Permissive.

Explanation:

The permissive effect or interaction of a hormone is in which hormone can not show or exert its complete effect without the presence of another hormone on a specific target site or cell.

The interaction of a hormone can occur in two more ways - synergies and antagonism where synergy occurs when two hormones perform the same action on a target cell and impact are amplified, and antagonist has the opposite role in the presence of another hormone.

Thus, the correct answer is - d. Permissive.

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation: