Answers: 1
Health, 23.06.2019 04:00
Viruses use the host's machinery to make copies of themselves. however, some human viruses require a type of replication that humans do not normally have. for example, humans normally do not have the ability to convert rna into dna. how can these types of viruses infect humans, when human cells cannot perform a particular role that the virus requires? a) the virus causes mutations in the human cells, resulting in the formation of new enzymes that are capable of performing these roles.b) the viral genome codes for specialized enzymes not in the host.c) the virus infects only those cells and species that can perform all the replication roles necessary.d) viruses can stay in a quiescent state until the host cell evolves this ability.
Answers: 1
Health, 23.06.2019 07:00
What’s the first step in handling stress? list eight strategies for managing stress. what are some physical symptoms of stress?
Answers: 1
Health, 23.06.2019 10:00
Lyme disease is caused by a bacterium transmitted to people by deer ticks. deer ticks are almost never born infected with the bacterium, but they can pick it up from feeding on an infected host in any of the tick's three successive stage of development: larva, nymph, adult. once infected, a tick remains infected through any subsequent developmental stages, but since a tick feeds on only one host in each stage, it follows that . people can be infected only by being bitten by a tick that is either in larval stage or in the nymph stage b. people cannot be infected by a tick that picked up the lyme disease bacterium in the adult stage c. it is not possible for a person to be infected by a tick that is in the nymph stage or by a tick that was infected with the bacterium while in the nymph stage d. people infected with the lyme disease bacterium cannot transmit bacterium to adult deer ticks e. only deer ticks that are adults can transmit the lyme disease bacterium to people
Answers: 1
Health, 23.06.2019 12:30
Describe the structure of a monosaccharide and name the three monosaccharides important in nutrition.
Answers: 1
How can damage to a growth control gene in a single cell in the body sometimes lead to cancer? (Your...
Social Studies, 15.01.2020 20:31
Mathematics, 15.01.2020 20:31
Spanish, 15.01.2020 20:31
Mathematics, 15.01.2020 20:31
Mathematics, 15.01.2020 20:31
English, 15.01.2020 20:31
Mathematics, 15.01.2020 20:31
Mathematics, 15.01.2020 20:31