Scelta multipla
In gel electrophoresis, how does the rate of travel differ between small DNA fragments and large DNA fragments?
222
views
7. DNA and Chromosome Structure
DNA Structure
Scelta multipla
Which of the following is a key structural feature of a DNA molecule?
A
Single-stranded linear structure
B
Triple helix with parallel strands
C
Double helix composed of two antiparallel strands
D
Circular structure with no base pairing
Guida verificata passo dopo passo1
Recall the basic structure of DNA as discovered by Watson and Crick, which is fundamental to understanding its function.
Identify that DNA consists of two strands that run in opposite directions, a feature known as antiparallel orientation.
Recognize that these two strands twist around each other forming a shape called a double helix.
Understand that the strands are held together by base pairing between complementary nucleotides (A pairs with T, and G pairs with C).
Conclude that the key structural feature of DNA is a double helix composed of two antiparallel strands, distinguishing it from single-stranded, triple helix, or circular structures.
Video correlati
Pratica correlata
