In this question, there are no options given to choose from. I hope you wanted to know whether the statement in question is true or false. Based on this assumption, i am answering the question. It is true that London type smog typically forms when particles in coal smoke combine with water droplets in humid air.
Answer:
The given statement is False.
Explanation:
During the prophase stage of mitotis, the chromatin starts becoming more condense. Histone protein is a basic protein which is responsible for initial and basic packaging of chromatin into nucleosome.
The second level of chromatin packaging occurs when the nucleosomes are arranged in the fiber which has a diameter of about 30nm. Each nucleosome is attached with H1 histone and nucleosome fiber coil to form a solenoid structure which has a diameter of 30nm. Therefore the statement is false.
<span>The presence of insects at an incident scene involving blood is common. Flies that feed on blood at the scene produce small circular stains known as flyspeck which can be mistaken for alternative bloodstain such as expirated blood, also insects walking through a stain may spread the blood causing small additional stains.</span>
