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. […]
What plant and animal cells have in common?
What plant and animal cells have in common? Animal cells and plant cells share the common components of a nucleus, cytoplasm, mitochondria and a cell membrane. Plant cells have three extra components, a vacuole, chloroplast and a cell wall. What is unique to plant cells? The plant cell has a cell wall, chloroplasts, plastids, and […]
What kind of image is formed in the retina of the eye?
Which atomic structure has the greatest mass?
Which atomic structure has the greatest mass? neutrons Which particle has highest mass? Neutron is heaviest among all subatomic particles with mass of 1.0087 amu while proton has mass of 1.0073 amu. Positron and electron both have mass of 0.00055 amu. What has the greatest mass? Neutron Which particle has greatest mass? The heaviest of […]
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 result of wasted energy?
What is the result of wasted energy? Wasted energy is energy that is not usefully transferred or transformed. Energy is transformed into a different form that can be used. When energy is transformed or transferred only part of it can be usefully transformed or transferred. The energy that is not used in this process is […]
What is spectrophotometer and its uses?
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 […]
Why can self-heating cans be used only once?
Why can self-heating cans be used only once? Answer: Self-heating food packaging is active packaging with the ability to heat food contents without external heat sources or power. Packets typically use an exothermic chemical reaction. Why self-heating cans are very expensive? Self-heating cans have dual chambers, one surrounding the other, making a self-heating food package. […]
What is the similarities between magnetism and gravity?
What is the similarities between magnetism and gravity? Gravity is a force acting on an object with mass, magnetism is a force exerted by virtue of charged particles. Both are based on ferrous material, one is created by mas the other by the movement of the mass. Why is gravitational force a non contact force? […]