Quote - > Quote - Perhaps there was some genetic trait in common that allowed this since, in the Star Trek mythology the universe had been seeded with common genetic material.

They didn't interbreed. With the help of a team of a dozen scientists, Spock was created thanks to the help of invitro fertilization and genetic engineering from genetic material provided by his mother and father. They were not capable of naturally creating a healthy child.

According to a recorded interview between Gene Roddenberry and Sarek (Mark Lenard) for the recording Inside Star Trek released in 1976, Sarek does not deny impregnating Amanda and hints at how they were able to over come both the physical and mental "challenges" to do so. Further Sarek describes the process that allowed Spock to survive to term:

Roddenberry: "And Spock was the result. The first Human-Vulcan mixture."

Sarek: "No, not the first. But the first to survive. As you must know, an Earth-Vulcan conception will abort during the end of the first month. The fetus is unable to continue life once it begins to develop its primary organs. The fetus Spock was removed from Amanda's body at this time--first such experiment ever attempted. His tiny form resided in a test tube for the following two Earth months, while our physicians performed delicate chemical engineering, introducing over a hundred subtle changes that we hoped would sustain life. At the end of this time, the fetus was returned to Amanda's womb. At the ninth Earth month, the tiny form was again removed from Amanda, prematurely by Vulcan standards, and spent the following four months Vulcan term pregnancy in a specially designed incubator. The infant Spock proved surprisingly resilient--there seems to be something about the Earth-Vulcan mixture, which created in that.. tiny body.. a fierce determination to survive."

What happened after the final 4 months is suggested in a "flashback" brought on by Sybok in Star Trek V The Final Frontier which shows Sarek and Amanda going through Spock's deilivery in a cave. Sarek, upon seeing his infant son for the first time says "so human..." There is some debate over whether this is a real memory or a false memory created by Sybok.

Quote - > Quote - Must have been the Universal Translators that were frequently seen in episodes and were often mentioned.

Yes, it was the translators.

Of course it was, else I wouldn't have said so! :tt2: An image of a hand-held Universal translator used in Start Trek TOS, along with facts about it's invention and use can be found here at Memory Alpha, which is a Star Trek Wikipedia. You will find the earliest Universal Translators could only be used for ship to ship communication. Kirk was seen using a hand held translator when speaking to the "Companion" in the episode Metamorphosis. In STNG, Voyager, and DS9 Universal Translators were integrated into com badges. The Universal Translator sometimes required several hours to analyze a language before it would work and there were several languages it was unable to decipher at all.

Live Long and Prosper //_ 

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Until the flying monkeys attack!!!