Question

Match the terms below with the form of DNA that they describe. A DNA, B DNA, Z DNA

1) 11 bp per turn
2) 10 bp per turn
3) 12 bp per turn
4) left hand helix
5) parallel bases
6) occurs under low water conditions
7) occurs under normal conditions
8) occurs in G/C rich sequences

Answer 1

Forms of DNA are characterized by different structural features, with B DNA being the most common, A DNA found under low water conditions, and Z DNA being less common and occurring in G/C rich sequences.

Step-by-step explanation:

The different forms of DNA, namely A DNA, B DNA, and Z DNA, can be described based on specific structural characteristics. B DNA is the most common form of DNA, and it typically occurs under normal physiological conditions. It has 10 base pairs (bp) per turn and exhibits a right-handed helix.

A DNA is a form that is less common, found under low water conditions, and has a shorter and wider right-handed helix with 11 bp per turn. Z DNA is the least common with a long and narrow left-handed helix, having 12 bp per turn and occurs in G/C rich sequences.

To match the descriptions with the forms of DNA: B DNA equals 2) 10 bp per turn and 7) occurs under normal conditions. A DNA corresponds to 1) 11 bp per turn and 6) occurs under low water conditions. Z DNA matches 3) 12 bp per turn, 4) left hand helix, and 8) occurs in G/C rich sequences.