A white blood cell has a different structure and function compared to a red blood cell. What does a white blood cell do to genes it does not need?

It represses the transcription of unnecessary genes.

It transports unnecessary genes out of the cell.

It cuts out unnecessary genes from the cell's chromosomes.

It destroys unnecessary genes.

the index of refraction of the second medium is higher. i just took the test trust me !

as many times as you want

measuring physical properties lab reportinstructions: in the physical properties lab, you will test the physical properties of different building materials in order to pick the appropriate materials for a new home in tiny world. record your observations and test measurements in the lab report below. youwill submit your completed report.name and title: lyric lawton, mr.herbert, 10/13/17, physical properties lab. objective(s): i need to parvus build his house out of the right material, so he will stay cool in the mountains.hypothesis: if we use wood to build the roof of the house, then the temperature inside the house will remain cooler.if we use clay brick to build the walls and floors of the house, then the temperature inside the house will remain cooler.if we use aluminium to bring electricity into the home, then it will allow electricity to flow into the home at a faster rate.if we use iron to construct the latches on the windows and doors, then the magnetism will keep the latches secure.