An enzyme, which cleaves DNA after identifying a specific sequence of DNA is known as a restriction enzyme. The restriction enzymes are regarded as molecular scissors. The restriction enzymes are used by scientists to cleave a single gene from a bigger DNA piece that is, a fragment of foreign DNA and is spliced into a phage genome with the help of DNA ligase and restriction enzyme.
The packaging of recombinant phage DNA is done in vitro and is permitted to infect a bacterial cell. The infected bacteria generate novel phage particles, each comprising a foreign DNA.
Answer: Like with fingerprints, no two people have the same brain anatomy, a study has shown. This uniqueness is the result of a combination of genetic factors and individual life experiences.
Explanation: An example is the heart's circulatory system, where the vessel supplying blood to the posterior part, known as posterior descendant artery, stems from the right coronary artery in 80-85% of the cases, and from the left coronary artery in the remaining 15-20%. This is known as either right of left dominance
Answer:
The limited autonomy of the robotic rovers on Mars posed a big problem.
Explanation:
Missions are very costly, and can lead the project to fail with the simplest errors. If the rover was permanently trapped on a rock or destroyed, it would have a catastrophic impact on the exploration. Thus on-board technologies would still be more traditional than what a laboratory environment has sought. The autonomous rovers will considerably increase the productivity of crew. Responsibility for their own well-being is also useful for the rovers: to prevent getting hurt, to recognize and correct recoverable hardware and software faults.
