Exercise 4. (Rabbits vs. Foxes) The Lotka-Volterra predator prey model is given by the system R = aR – bRF, F = -cF + dRF, with parameters a, b, c, d > 0 and R(t) population of rabbits in time, and F(t) population of foxes in time. a) Discuss the biological meaning of each term in the equations and comment on any unrealistic assumptions. b) show that the model can be rewritten (adimensionalization) as i = ¤(1 – y), ÿ = py(I - 1). c) Find a conserved quantity in terms of the dimansionless variables in (b). |3D

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Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.