Answer:
1- Test tube with DNA sample is placed in machine
2- DNA sample is heated
3- DNA denatures
4- Taq polymerase initiates DNA synthesis
5- Double-stranded DNA is produced
Explanation:
The Polymerase Chain Reaction (PCR) is a technique widely used in molecular biology laboratories in order to produce many copies of a specific DNA sample. Thermocyclers are machines designed for a cyclic temperature change of the PCR. First, an initial denaturation step where DNA sample is heated to separate the double-stranded DNA into two single strands. Subsequently, 20-40 PCR cycles are repeated to produce millions of copies of a specific DNA sequence. There are three steps in each PCR cycle: 1-Denaturation to 94–98 °C (DNA strands are separated), 2-Annealing to 50–67 °C (primers bind to each DNA strand on the opposite ends of the DNA strands to be copied) and 3-Extension to 75–80 °C (Taq polymerase initiates the synthesis of complementary DNA strands).
Answer:
it is the process where new cells are formed called as daughter cells from a single cell
Answer:
B. Nucleus
Explanation:
The nucleus is a double membrane-bound structure responsible for controlling all cellular activities as well as a center for genetic materials, and it's transferring. It is one of the large cell organelles occupying 10% of total space in the cell.
Missing choices:
A) Myocardial hypercapnia
B) Hypocalcemia
C) Hyperkalemia
D) Hypercalcemia
E) Myocardial hypoxia
I'm debating between two answer choices. A) Myocardial hypercapnia and E) Myocardial hypoxia.
Myocardial refers to the cardiac muscle or myocardium.
Hypercapnia is the excessiveness of carbon dioxide in the blood stream.
<span>Hypoxia is the inadequate amount oxygen in the body.</span>
I'll go with E) <span>Myocardial hypoxia. </span>
Answer:
Some substances are made of only one kind of atom. Other substances are made of more than one kind of atom. How are the properties of these two types of substances different?
The properties of both atom differs as a result of presence of different constituents in their atom, the electron of an element made up of one atom would be different from another made up of two atom.
Explanation:
