Answer:
Chromosomal DNA is packaged inside microscopic nuclei with the help of histones. These are positively-charged proteins that strongly adhere to negatively-charged DNA and form complexes called nucleosomes. ... Nucleosomes fold up to form a 30-nanometer chromatin fiber, which forms loops averaging 300 nanometers in length.
Explanation:
Answer:
An identical setup but replacing the enzyme with an equal volume of water
Explanation:
When carrying out any experiment, it is important to set out a control in order to increase the reliability of the data and results.
The control minimizes the effects of variables other than the independent variable.
In the above experiment, starch has to be eliminated and replaced with water. Water does not have starch hence the digestive enzyme being tested will not have any effects making the data and results from the experimental group reliable.
Answer:
Higher speed and more weight car applied more force.
Explanation:
Bumper cars will win in a collision because these cars have a very tough front that easily drag opposite car and receive less damage. If the weight of the car is great and speed is high as compared to the opposite car so the car will easily drag another car after collision because the car having more weight and higher speed has applied more force on the opposite vehicles.
Answer:
The process of filtration (or filtrate formation) occurs at the filtration membrane.
Explanation:
The filtration membrane is located at the boundary between the glomerulus and Bowman's capsule.
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