Answer:
The average length of a double helix in human chromosome whose length is 3.9 cm has approximately 114.7 million base pairs
Explanation:
Lenght of DNA = number of base pairs * distance between consecutive base pairs
The distance between two consecutive base pairs bonded by hydrogen bonds is 0.34 nm.
If the average length of a double helix DNA molecule in human chromosome is 3.9 cm, the average number of base can then be calculated using the formula below:
Average number of base pairs = length of DNA ÷ distance between consecutive base pairs
Average number of base pairs = 3.9 cm/ 0.34 nm = 0.039 m/ 0.00000000034 m
Average number of base pairs = 114705882.4
Therefore, the average length of a double helix in human chromosome whose length is 3.9 cm has approximately 114.7 million base pairs
Answer:
The transition metals are a group of metals that are found in the middle of the periodic table.
Explanation:
The sentence that best describes a buffer is the first one.
Buffers resist change in pH of solutions by neutralizing excess acid or base.
Answer:
You can describe the motion of an object by its position, speed, direction, and acceleration. An object is moving if its position relative to a fixed point is changing. Even things that appear to be at rest move.
Explanation:
Answer:
You should always put the low power objective lens into the center place.
Explanation:
- Always cover the microscope with the supplied dust cover when not in use.
- Store in a dry place.
- In humid or moist environments, it is advisable to store the microscope in a waterproof container with a drying agent.
- Do not touch the optical lens with bare fingers.
- Do not store the microscope in direct sunlight.
