What purpose does an antibiotic resistance gene serve in a cloning vector? Adding an antibiotic resistance gene to the plasmid solves both problems at once – it allows a scientist to easily detect plasmid-containing bacteria when the cells are grown on selective media, and provides those bacteria with a pressure to keep your plasmid. What […]
Does the Golden Gate Bridge need maintenance?
Does the Golden Gate Bridge need maintenance? But keeping the Golden Gate Bridge in tiptop form requires ongoing stringent maintenance. For 80 years, dedicated maintenance crews have serviced the bridge, repainting and substituting the corroded or broken components where necessary. This work must be done to exacting standards. What is the maintenance of the Golden […]
How much did Leonardo da Vinci sell Mona Lisa for?
How much did Leonardo da Vinci sell Mona Lisa for? Since the museums rarely sell them, they are considered priceless. Guinness World Records lists Leonardo da Vinci’s Mona Lisa as having the highest ever insurance value for a painting. On permanent display at the Louvre in Paris, the Mona Lisa was assessed at US$100 million […]
How do you reset the low tire pressure light on a Mercedes?
How do you reset the low tire pressure light on a Mercedes? Find the service button on your screen, you might have to scroll down. Once you click on the ‘service’ button, find ‘tire pressure’ and select it. This will actually display what your tire pressures are. Once you adjust to the correct pressure, you […]
What causes hole in intake manifold?
What causes hole in intake manifold? Intake manifolds fail because of the high levels of constantly-changing heat and pressure they are subjected to on a daily basis. The strain they are put under inevitably leads to cracks developing – it is up to the driver to diagnose the problem and deal with it at the […]
How many babies can a sifaka have?
How many babies can a sifaka have? Some five-and-a-half months after mating, females give birth to a single baby — tiny, black, and furry. How many Sifakas are left in the wild? There are fewer than 1,000 still alive, perhaps only 100, says Erik Patel, a PhD candidate at Cornell University who has spent years […]
Is cornflakes one or two words?
Is cornflakes one or two words? A breakfast cereal of crisp flakes made from hulled corn and served cold, as with milk. Alternative spelling of corn flakes. Whats the meaning of cornflakes? : toasted flakes made from the coarse meal of hulled corn for use as a breakfast cereal. How do you use corn flakes? […]
Can white sharks kill you?
Can white sharks kill you? In the case of great white sharks, which, along with bull and tiger sharks, are the largest and most dangerous species known to attack humans, there is compelling evidence from survivors of attacks suggesting that the sharks may simply have been investigating what they considered to be foreign objects in […]
How big is a full grown grizzly bear?
How big is a full grown grizzly bear? Grizzly bears weigh upward of 700 pounds (315 kilograms). The males are heavier than the females and can weigh up to 1,700 pounds (770 kilograms). A large female will weigh up to 800 pounds (360 kilograms). How tall and wide is a grizzly bear? Size & appearance […]
Is China a centrally planned economy?
Is China a centrally planned economy? Since its establishment in 1949 and until the end of 1978, China maintained a centrally planned, or command, economy. The state directed and controlled a large share of the country’s economic output; the state set production goals, controlled prices, and allocated resources throughout most of the economy. What is […]