guanine, cytosine, thymine, adenine.
pairs of nitrogen bases
You are probably thinking of DNA. The base pairs link the two strands together like a series of steps. However, since it is helical, it might be more accurate to compare it to a spiral staircase.
The staircase shape of DNA is often referred to as a "double helix." This structure consists of two intertwined strands that form the sides of the staircase, with pairs of nitrogenous bases acting as the steps. The arrangement of these bases encodes genetic information, while the helical shape provides stability and allows for efficient packing within cells.
AnswerAccording to Kenny (from the television show 'Kenny vs Spenny,' Season 1 Episode 11: Who can win a series of mini-competitions) the largest stair case in the world is at the CN tower in Toronto, Canada, which has 1,776 steps. The world's largest (longest) staircase is actually in the Swiss Alps on Mount Niesen. It has 11,674 steps and is used by service personnel to access the funicular (tram) that runs up the mountainside. It is also used for a yearly race. It is the same as climbing the CN tower 4.5 times. (Tim from Illinois)
Facilitated diffusion involves the movement of molecules across a cell membrane with the help of transport proteins. The steps include the binding of the molecule to the specific protein, conformational changes in the protein to carry the molecule across the membrane, and the release of the molecule on the other side of the membrane. This process does not require energy input from the cell.
pairs of nitrogen bases
guanine, cytosine, thymine, adenine.
The steps in the staircase are typically around 7 to 8 inches deep.
The steps in the building's staircase are approximately 7 inches high.
The steps in the staircase are typically around 7 to 8 inches tall.
The Grand Staircase on Titanic (and Olympic) had twelve steps at the bottom.
The formula to calculate the rise and run of a staircase for deck steps is to divide the total height of the staircase by the desired number of steps to determine the rise, and then divide the total depth of the staircase by the number of steps to determine the run.
To figure out the number of stairs in a staircase, you can count the individual steps from the bottom to the top of the staircase.
Steps, stairs, escalator, and stairway are all synonyms of staircase.
When an escalator is not moving, it functions like a staircase with fixed steps. Going up these steps requires more effort than a regular staircase because the steps are usually higher and steeper to accommodate the escalator mechanism. This design can make it physically harder to ascend compared to a traditional staircase.
The ideal width for steps in a staircase is typically around 36 inches to allow for comfortable and safe passage.
A spiral staircase is actually a very good analogy for DNA. The railings are like the chains of Deoxyribose (the type of sugar that gives DNA its name) that give the DNA molecule its shape. The steps in the staircase would represent the base pairs (made up of Adenine, Guanine, Thymine, and Cytosine) that contain the genetic information.