All cells require enzymes<span> to survive and </span>function.Enzymes<span> are catalysts, which means that they make chemical reactions go faster, but are not changed by the reaction.</span>
Answer: If the F2 occurs in the ratio 9 blue:3 pink:4 white, one gene pair (i.e 2 genes) control the flower color phenotype.
Explanation: This principle is called INCOMPLETE DOMINANCE where one gene (dominant) won't completely override the other (recessive).
Let assume B represents the dominant gene and b represents the reccesive gene. Let also assume that Blue color is dominant over white color. We can assign the genotype as follows;
Homozygous dominant genes BB will produce Blue color
Homozygous recessive genes bb will produce white color
Heterozygous genes Bb will produce pink color.
Therefore, a pair of gene ( 2 genes) will determine the flower color phenotype.
2) Heat
Only heat can be transferred from one object to another object by the means of conduction , convection and radiation .Even if the energy is being transferred by kinetic energy that is also in the form of heat .This can simply be understood by taking the example of two balls say one ball is stationary and other one is moving ,the particles inside the moving ball is having high kinetic energy as compared to that of stationary and when the both the balls colloid the energy is transferred in the form of heat and the other ball which was at stationary starts moving .
So,ultimately heat is transferred between objects.
