subject
Biology, 22.11.2021 23:10 juliocesar61

Crime-scene work often involves obtaining a DNA sample from a drop of blood to help identify persons who may have been involved. Frequently, the size of the DNA sample is extremely small, too small for easy analysis. Which of the following laboratory procedures could criminologists use to amplify the amount of DNA present? a
Cloning and gel electrophoresis

b
Cloning and polymerase chain reaction (PCR)

c
DNA splicing and polymerase chain reaction (PCR)

d
Vector amplification and DNA splicing

ansver
Answers: 1

Another question on Biology

question
Biology, 22.06.2019 02:30
Which is not a likely outcome after extensive irrigation of dry farmland? useless, unproductive soil salinization of the soil depletion of groundwater nutrient-rich soil
Answers: 1
question
Biology, 22.06.2019 11:00
In the united states there are strict fishing seasons and limits, but not all countries enforce similar laws. in bangladesh there are few if any fishing restrictions. what might be the reason for less restrictions in smaller countries like bangladesh? a) the united states is the only country worried about overfishing. b) the united states wants to limit the supply of fish to increase the price. c) bangladesh and smaller countries have an unlimited supply of fish in their coastal waters. d) small countries, such as bangladesh, are practicing subsistence fishing, taking only the fish needed to survive.
Answers: 1
question
Biology, 22.06.2019 16:40
Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.
Answers: 1
question
Biology, 22.06.2019 17:30
Label the following as inner or outer planets; a) has 67 moons made mostly of hydrogen and helium b) has rings c)no moons, high volcanic activity d) known as the red planet, has 2 moons e) very thin atmosphere, moons or rings
Answers: 3
You know the right answer?
Crime-scene work often involves obtaining a DNA sample from a drop of blood to help identify persons...
Questions
question
Mathematics, 12.02.2021 20:00
question
Mathematics, 12.02.2021 20:00
question
Mathematics, 12.02.2021 20:00
question
Mathematics, 12.02.2021 20:00
question
Biology, 12.02.2021 20:00
question
Mathematics, 12.02.2021 20:00
question
Biology, 12.02.2021 20:00
Questions on the website: 13722367