The answer is germination :)
You just have to describe on how the cell structure will describe themselves .
Answer:
A. Endergonic
Explanation:
Free energy refers to the component of the total energy of a system that is available to perform work at constant temperature and pressure. It depends on entropy, enthalpy and temperature. Free energy of a reaction is denoted by letter "G". Free-energy change (delta G) is the amount of free energy released or absorbed during a reaction at constant temperature and pressure.
When substrates absorb energy during the reaction, the delta G becomes positive. On the other hand, when the substrates release energy during reactions, the free energy change for the reaction is said to be negative. A reaction with positive free energy change is endergonic and non-spontaneous while the ones with negative free energy change are exergonic and spontaneous.
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.
