Scientists use a technique called to make multiple copies of DNA sequences. Scientists can also make by combining DNA from two different sources. One of the sources may be bacteria, which have circular DNA molecules called When bacteria undergo transformation, they can be identified by . 1. gel electrophoresis
DNA ligation
recombinant DNA
the polymerase chain reaction (PCR)

2. plasmids
polyploidy
messenger RNA
recombinant DNA

3. polyploidy
recombinant DNA
plasmids
telomeres

4. nucleotides
genetic markers
telomeres
polyploidy

What are some possible short and long term medical concerns for crew members on longer space exploration trips

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.

{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.