Me pweas the burning of fossil fuels (oil, coal, natural gas) releases carbon dioxide into the atmosphere. carbon dioxide is known as a greenhouse gas because it tends to trap heat in the atmosphere, causing global warming. in 1995, the united states emitted about 1.4 billion tons of carbon (as carbon dioxide) into the atmosphere. china was second largest contributor, emitting 850 million tons. us emissions were increasing at 1.3% a year, while chinese emissions were increasing at 4% a year. assuming these growth rates continued determine the year when china will exceed us i

answers are:

lysogenic     viral dna merges with host cell dna

lysogenic     no symptoms

lytic               viral dna takes over

lysogenic     virus does not destroy host cell

lytic               virus destroys host cell

lytic               induces symptoms of viral infection

lysogenic       cell reproduces and spreads provirus

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'