What is spectrophotometer and its uses? A spectrophotometer is an analytical instrument used to quantitatively measure the transmission or reflection of visible light, UV light or infrared light. Applications for specs include measurement of substance concentration such as protein, DNA or RNA, growth of bacterial cells, and enzymatic reactions. What is spectroscopy principle? What Is […]
How many histones are in a nucleosome?
How many histones are in a nucleosome? eight proteins Do histones organize DNA? ‘Sticky’ histones keep DNA organized, but it takes a team of proteins to get them into the nucleus without causing a tangle. Cells contain two meters of DNA which, if left to its own devices, would soon end up in a knot. […]
Which countries have coastlines on the Pacific Ocean?
Which countries have coastlines on the Pacific Ocean? List Continent Country Pacific Ocean North America Costa Rica Pacific Ocean North America & South America Panama Gulf of Panama South America Colombia Pacific Ocean South America Chile South Pacific Is Panama considered a Caribbean country? Apart from these islands, there are many countries that are although […]
Is there a direct relationship between time in the air and the range?
Is there a direct relationship between time in the air and the range? There is no direct relationship between air time and range because when the initial angle changes, the initial velocity divides into x and y components. as x-velocity increase, the range increases up 5. What is the purpose of a motion graph? Describing […]
What types of combustion are there?
What types of combustion are there? Here’s a closer look at five types of combustion: Complete Combustion. Complete combustion requires a combination of fuel and oxygen. Incomplete Combustion. Incomplete combustion occurs when there is not enough oxygen for the fuel to fully react. Rapid Combustion. Spontaneous Combustion. Explosive Combustion. What three things are needed for […]
Will a diode reduce voltage?
Will a diode reduce voltage? Diodes allow electricity to flow in only one direction, but a diode will only conduct electricity, when the supply reaches its threshold. The threshold for common silicon diodes is 0.6 volts. After each diode, the voltage can be seen to drop by 0.6 volts. In this way, diodes can be […]
What location has the highest air pressure?
What location has the highest air pressure? World: Highest Sea Level Air Pressure Below 750 meters At 1200GMT on 31/12/1968, the pressure at the center of huge anticyclone over Siberia reached 1083.8 hPa and was authenticated. Which city has highest air pressure? A frigid air mass in Mongolia may have just crushed a world record […]
What is the effect of molecular weight on melting and boiling points of alkanes?
What is the effect of molecular weight on melting and boiling points of alkanes? Their melting and boiling points of alkanes are relatively low. The higher the molecular weight (the greater the number of carbons), the higher the boiling point. What is the major use of alkanes? Use of Alkanes Alkanes are important raw materials […]
What two forces limit the height of capillary action will take water up a tube?
What two forces limit the height of capillary action will take water up a tube? Capillary action occurs when the adhesion to the walls is stronger than the cohesive forces between the liquid molecules. The height to which capillary action will take water in a uniform circular tube (picture to right) is limited by surface […]
How long was John Adams away from his wife?
How long was John Adams away from his wife? Abigail and John Adams would endure long periods of separation for the first fifteen years of their marriage. What made John Adams a good president? Learned and thoughtful, John Adams was more remarkable as a political philosopher than as a politician. When Adams became President, the […]