Answer:
Lava is rock that has undergone a physical change and has liquefied. What is known about this change? The lava gained mass
Explanation:
Answer:
C. 3, 2, 1
Explanation:
During a single PCR cycle, the very first step is the heat separation of the double stranded DNA. Primer binds only single stranded DNA/RNA because it has complimentary bases which match single strand of DNA/RNA that is why it is necessary to unwind both the strands of DNA by providing temperature.
As soon as the DNA strands have separated by increasing the temperature to ~ 95 °C, in the next step the primer binds the portion of DNA which is complimentary to the bases of the primer. In order for primer to bind DNA, the temperature is lowered to ~ 72 °C and the process is called as annealing.
Once primer has bound to the DNA, the next step is polymerization i.e. nucleotides which are the monomer units of DNA are added one by one with the help of enzyme named as Taq polymerase. This is how the strand extends ahead of primer and exact copies of the given DNA are produced.
Note: PCR may be considered as in vitro DNA synthesis or replication.
Answer:
Thus, in eukaryotes, while transcription occurs in the nucleus, translation occurs in the cytoplasm.
A change in the contolled veriable. Such as a color change, state of matter change, a reaction like oader, bubbling or tempature change.
Oil, oil is made from things that has died thousands/millions of years ago.