AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What do we call the shape a DNA molecule takes?
A
double-stranded
B
double helix
C
sugar-phosphate backbone
D
pentagon
Explanation: 

Detailed explanation-1: -… Deoxyribonucleic acid (abbreviated DNA) is the molecule that carries genetic information for the development and functioning of an organism. DNA is made of two linked strands that wind around each other to resemble a twisted ladder-a shape known as a double helix.

Detailed explanation-2: -Double helix, as related to genomics, is a term used to describe the physical structure of DNA. A DNA molecule is made up of two linked strands that wind around each other to resemble a twisted ladder in a helix-like shape.

Detailed explanation-3: -The most common DNA shape illustrated by artists and scientists looks a lot like a twisting ladder. Scientists call this a double helix. DNA also folds and coils itself into more complex shapes. The coiled shape makes it very small.

Detailed explanation-4: -The double-helix shape allows for DNA replication and protein synthesis to occur. In these processes, the twisted DNA unwinds and opens to allow a copy of the DNA to be made. In DNA replication, the double helix unwinds and each separated strand is used to synthesize a new strand.

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