X-factor winning "little Mix" try their hand at a song about d-d-d-DNA (maybe a misplaced reference to Sanger's dd DNA sequencing?). Anyway I'll let you enjoy the song/video before trying to dissect the lyrics.
And now to look at the lyrics; First verse is just fluff - nothing to do with biology other than being horny. Snide comments are in brackets and not to be confused with bizarre background pop echo lyrics.
"It's the blue in his eyes that helps me see the future [true on the eyes - not so much seeing the future]
Fingerprints that leave me covered for days, yeah yeah [I guess there might be DNA from the grooves?]
Now I don't have any first degree [that's becoming self-evident]
But I know, what he does to me
No need to work it out, it's so familiar [this isn't a very scientific attitude]"
" And my heart won't beat again
If I can't feel him in my veins [I have no idea what kinky kind of things they are getting up to - or they may just be sharing needles]
No need to question, I already know [again with the anti-science stance]"
" He's from a different strain
That science can't explain"
[Again, I'm sure with the right kind of experimentation and samples, science probably could eventually explain this. Not that it would be a good use of research funding. ]
My favourite lyric by far is this one though;
"It's simple genetic
I'm the x to his y"
Let's ignore the dropping of the "s" (this is maybe how the cool kids use the word) but consider the genetic(s) of the statement. So, the girl is the guy's mum? That's just sick. A pop song about incest. Game of Thrones and Boardwalk Empire have really become a trend setters. The lyrics tend to fit the "pop song innuendo" a lot better if the "DNA" they are referring to is sperm. This may also let them off the hook for the incest line in that she's maybe singing about making a baby, which is possibly connecting with their target audience.
" It's in his dna
And he just takes my breath away
I feel it every day, and that's what makes a man"
and "Contaminates my lips" [she should have read the COSHH form and at least had safety glasses on]
Laying it on a bit thick there? (innuendo intended)
In summary, while it's nice that biological terms are so well known they can be used as the basis of a pop song, it's clear they don't know much about how the things actually work. Or they do but prefer nonsense pop lyrics over substance, which is fair enough. Or they are trying to make the next generation comfortable with the idea of incest.