When scientists clone a gene, they isolate and make exact copies of just one of an organism's genes. Cloning a gene usually involves copying the DNA sequence of that gene into a smaller, more easily manipulated piece of DNA, such as a plasmid. This process makes it easier to study the function of the individual gene in the laboratory.
To me a deep thinker is someone who is an innately curious, and deeply insightful. He/she has a profound understanding of the right questions to ask in the face of both reality and the unknown. He/she is not afraid to see reality and what is there before him/her.
Deep is kind of the opposite. E.g. Would you be interested in dating my friend Katy? Shallow person says, She has that stupid mole on her face. Don't really want a girl like that. Deeper person says, The chick who's studying for a PhD in civil engineering? Wow, that's awesome, I'd love to get to know her, we'd have loads to talk about NOTE: there are some other meanings of calling someone deep. Someone who is harsh or overly insulting can be deep, as in the metaphor to cut deep. Deep can also mean both seriously or sarcastically thoughtful and complex. Serious example: My favourite philosopher is....blah blah...