The following ILP is being solved by the branch and bound method. You have been given the initial relaxed IP solution. Complete the entries for the 3 nodes and label the arcs when you branch on X2. 
Initial solution
X1 = 5.0
X2 = 7.5
Obj = 550 
Definitions:
Zygotic Stage
The earliest developmental stage of an embryo, starting from fertilization until it becomes a blastocyst.
DNA
Deoxyribonucleic acid, a molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all living organisms.
Zygote
The initial cell formed when a sperm cell fertilizes an egg cell, which will then undergo cell division and grow into an embryo.
Chromosome
A molecule made of DNA and proteins carrying genetic information in the form of genes.
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