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centromere
the parent cell
In you ladder analogy it would be the rungs. About half is each rung is one base (the other half being is pair obviously)
The uniform width of 2 nm would not permit two purines or two pyrimidines to pair together.
thymine
Guanine and cytosine base pair (triple bond), and adenine and uracil base pair (double bond).
An acid base pair which differ from each other by a single proton(H+ ion) is called a conjugate pair. Eg. Acid Base HCl Cl- NH3 NH4+ H2O H3O+
The shape of each base of a cylinder is circle. Also, the base of it can be a pair of congruent or parallel.
Nitrogen base
An acid base pair which differ from each other by a single proton(H+ ion) is called a conjugate pair. Eg. Acid Base HCl Cl- NH3 NH4+ H2O H3O+
Base pairing refers to the pairing of complimentary nitrogen bases, either during DNA replication, or transcription and translation. In DNA, the bases adenine and thymine pair together, and guanine and cytosine pair together. In RNA, the base uracil takes the place of the base thymine. The bases that pair together are said to be complimentary to each other.