Answer: The part of DNA that the teacher was modelling would be the backbone of DNA.
Explanation:
The DNA is made of double helical structure which is twisted. In the structure of DNA two strands are coiled among each other.
The DNA consists of the nitrogenous bases, phosphate groups and deoxy-ribose sugar.
The backbone of DNA is made up of sugar( alternating )and phosphate group.The nitrogenous bases such as adenine, cytosine ,guanine and thymine are joined to the deoxy-ribose sugar.
This backbone part was part that the teacher was making as a model by using two coiled springs.
Answer:
The appendicular skeleton supports the attachment and functions of the upper and lower limbs of the human body.
Answer:
Replication occurs in three major steps:
the opening of the double helix and separation of
DNA strands, the priming of the template strand,
and the assembly of the new DNA segment. During
separation, the two strands of the DNA double helix uncoil at a specific location called origin.
Answer
Water molecules sticking to a mirror’s surface is an example of adhesion.
Explanation
Adhesion is the property of attractive force that exist between two different molecules. water molecules adhere to other surfaces due to their polar nature.
Importance
it is because of adhesive forces that water can travel and cover a distance of 100 meter up in the plants through xylem vessels as recorded in the world tallest tree (red wood tree)
