The above-mentioned method is used to analyze the streak of a mineral. Streak can be different from that of the color of the mineral, itself. It is used for soft minerals, and such minerals have their characteristic streaks. So the correct answer to your question is D.
<span>hromoplast is the generic term but is usually used to refer only to those plastids that do not have chlorophyll.</span>
Answer: The gene that controls the production of white blood cells will be widely expressed
Explanation: White blood cells fight off viruses so when a virus is detected the genes for white blood cells will be activated.