Answer:
False
Explanation:
Primers are the small segments of DNA or RNA. Primers do not cleave DNA at specific regions. It is a function of restriction endonucleases. Primers are required during the process of DNA replication as DNA polymerase cannot start the formation of a new DNA strand without preexisting free 3' OH ends. A primer is formed by a primase enzyme. Primers provide the free 3' OH ends to DNA polymerase which in turn extends them to make the new DNA strands. In PCR, primers serve as the same function for the enzyme of DNA strand formation (Taq polymerase).
Answer:
high-density lipoproteins?
Explanation:
I think this is the answer... but I'm not sure. if you need me to delete this, I will.
The appropriate answer is A. it may introduce new bacteria to the system. Biotechnology involves the use of living organisms in innovative ways to get a beneficial outcome. Biotechnology is often used in agriculture, medicine and a host of other fields.
B. is an inappropriate answer because it specifies the use of chemicals and not living organisms.
Answer:
Calcium ions
Explanation:
For muscle contraction to occur, Troponin, a regulatory protein which regulates the tropomyosin, is activated by calcium ions, and is kept at extremely low concentrations in the sarcoplasm. If these calcium ions are released from the sarcoplasm by signals from neurotransmitters, calcium ions bind to troponin, causing conformational changes in troponin that allows tropomyosin to uncover the myosin-binding sites on actin. Tropomyosin a regulatory protein on the myofibril (composed of actin and myosin filaments) must change its conformation and uncover the myosin-binding site (it hides the binding site) on an actin molecule, thereby allowing cross-bridge formation between the actin and the myosin head. Once the tropomyosin is removed, a cross-bridge can form between actin and myosin, triggering muscle contraction.
Answer:
I think the answer should be related to wind patterns.
So it is probably the first answer choice.
Explanation:
The uneven heating of earth's surface creates air masses of different temperatures.
