A key concept in science is molecular scale. DNA is a fascinating molecule in this regard.
While we cannot "see" DNA molecules without the aid of advanced technology, a full length DNA molecule can be very long. In human cells, other than sperm and eggs, six billion ...
A key concept in science is molecular scale. DNA is a fascinating molecule in this regard. While we cannot "see" DNA molecules without the aid of advanced technology, a full length DNA molecule can be very long. In human cells, other than sperm and eggs, six billion base pairs of ...
If you've seen our blog posts about different forms of DNA (A, B, Z), nucleosomes, telomeres, or DNA sequencing, you might get the idea that we're a bit obsessed with DNA. And, you'd be right. We find DNA to be amazingly fascinating and beautiful, as well.
April 25th (4/25) is national DNA day. Digital World Biology™ celebrates by sharing some of our favorite DNA structures. We created these photos with Molecule World™ Molecule World is a tools for exploring molecular and chemical structures on an iPhone or iPad.
Scale, proportion, and quantity belong to one of the cross cutting concepts in the next generation science standards (NGSS). According to Volume 2 of the NGSS, "in engineering, no structure could be conceived much less constructed without the engineer's precise sense of scale." The authors go on to note that scale and proportion are best understood using the scientific practice of working with models.
Replication fork - http://en.wikipedia.org/wiki/Telomere.
Every time their DNA gets replicated, it gets shorter. This is due to the fact that DNA polymerase can only add bases to the terminal 3'-OH of a DNA chain. The DNA replication initiation complex uses RNA ...
