Is Okonkwo's father responsible for how Okwonkwo turned out as a person?

The answer to this question is up to individual reader opinion. There is not a definitive answer, so feel free to defend what you think. Embedded in this question is a bit of the nature vs. nurture debate. If a person's physical traits and personality are entirely determined by the genes that make that person up, then yes, Unoka is automatically responsible for Okonkwo being the way that he is. Unoka contributed genetic coding to Okonkwo, and, without that coding, Okonkwo wouldn't be whom he is. The downside to this argument is that had Unoka been a brilliant parent and a wonderful contributing member of society, Okonkwo still would have ended up the way that he is. If his being is entirely determined by his genetic coding, it is set in stone regardless of what kind of person Unoka is/was.
I don't believe that a person is entirely determined by his/her nature (genetic coding). I think how a person is raised has a larger impact on a person's behavior and personality. Even coming from that angle, I still believe that the answer is "yes." Okonkwo harbors resentment and anger toward his father. Basically, Okonkwo doesn't want to be anything like his father. In this way, Unoka is a motivating force in Okonkwo's life. Unoka definitely shares some responsibility for Okonkwo becoming the man that he does; however, I do not think that Unoka deserves 100% of the "blame." Unoka didn't intentionally try to raise Okonkwo to be the hyper masculine person that he is, so I have a hard time putting all of the responsibility on Unoka. Okonkwo is still in control of himself and how he acts. Okonkwo chooses to be the way that he is.

One could argue that Okonkwo's father, Unoka, is responsible for his son's callous, hostile, determined demeanor. Unoka was a lazy man and a debtor, who enjoyed playing his flute and drinking palm-wine all day. He was also not aggressive and always avoided physical confrontation. Unoka lived a happy-go-lucky life and died a titleless man, who was considered an abomination to the earth goddess and therefore carried to the Evil Forest instead of being buried in his home. Okonkwo is ashamed of his father and tries his best to be Unoka's exact opposite. Okonkwo fears becoming like his father and develops into an aggressive, masculine, callous man, who excels in warfare and is highly respected throughout his community. Okonkwo is known as a successful farmer, fearsome warrior, and decorated wrestler. However, Okonkwo's hyper-masculinity prevents him from developing a meaningful relationship with his son, Nwoye, and results in several terrible decisions that lead to his downfall. Okonkwo ends up killing Ikemefuna out of fear that he will be viewed as weak and also kills a European messenger towards the end of the novel. Overall, Okonkwo's aggressive, callous, masculine nature is a result of him desperately trying to avoid being like his father.