HORTICULTURE

HORTICULTURE SCIENCE

PLANT BIOTECHNOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
DNA is in the shape of a:
A
single helix.
B
single circle.
C
double circle.
D
double helix.
Explanation: 

Detailed explanation-1: -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. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.

Detailed explanation-2: -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.

Detailed explanation-3: -a pair of parallel helices intertwined about a common axis. “the shape of the DNA molecule is a double helix” type of: helix, spiral.

Detailed explanation-4: -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-5: -Each DNA molecule is actually a pair of strands wound together, forming a double helix.

There is 1 question to complete.