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Maurinko [17]
3 years ago
5

An important piece of information in the management of a person infected with a chronic virus such as HIV is his/her "viral load

" or how many virus particles can be detected. If before PCR, a patient had a viral load of 1.6 x 104 viral particles. What would be the amount of DNA in the sample after the completion of the first PCR cycle?
Biology
1 answer:
butalik [34]3 years ago
6 0

Answer:

the answer is 3.2 x 10⁴

Explanation:

The Polymerase Chain Reaction (PCR) is a technique widely used in molecular biology to exponentially amplify a specific DNA sample from a small amount of DNA. For this purpose, the PCR technique uses: 1- a DNA polymerase enzyme in order to synthesize new DNA copies and 2- one pair of DNA oligonucleotides (primers) which are complementary to the ends of the target DNA sequence. During each round of PCR, the double-stranded DNA template is unwound and each strand is used to synthesize a new DNA strand, thereby forming two new double-stranded DNA molecules. In consequence, each round of PCR doubles the amount of DNA.

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Can someone help match these defenitions.
luda_lava [24]

The right matches are:

1. nuclear envelope  is matched with b.

2.centriole  is matched with  a.

3.interphase is matched with j.

4.furrowing  is matched with h.  

5.anaphase  is matched with g.

6.spindle apparatus is matched with f.

7.chromatin is matched with i.

8.haploid is matched with c.

9.meiosis is matched with e.  

10.homologous chromosomes is matched with d.


Cell division consists of the formation of two or more cells from a single cell, which ensures their numerical growth. During mitosis of a cell, each daughter cell is identical to the mother cell. During meiosis, the mother cell gives two haploid daughter cells with n chromosomes, then each of these daughter cells give two n chromatid cells.

May be some word in this exercise are not very common like:

The mitotic spindle, allows chromatid migration during cell division.

The dividing groove is the invagination of the cell surface that allows the cell to divide in two.

Centriole is a specific cell element of animal cells, which form the centrosomes located at both poles of the cell.


8 0
3 years ago
Which property results from the crystal lattice structure of ionic compounds? A. low melting point B. good electrical conductivi
lions [1.4K]

Answer:

C.) crystalline solids

Explanation:

The solid materials may be crystalline or amorphous. The concept of crystal structure is related to the organization of atoms in a geometrical form. Crystalline structures are present in various materials, where atoms distributed within their structure form a network called the crystalline lattice. Therefore, crystalline structures have salts, metals and most minerals. Crystalline structures are formed by unit cells that are their basic unit, as they constitute the smallest set of associated atoms found in a crystalline structure.

The molecules of the crystalline structures can have two types of bonds, the directional ones, which include the covalent and dipole dipole and the non-directional ones where the metallic, ionic, van der Walls bonds. When formed by ionic compounds, these crystalline structures can result in crystalline solids.

5 0
3 years ago
Blood is a mixture of a variety of materials. Some of the materials are dissolved in the fluid portion of blood. Other materials
boyakko [2]

Answer:

Blood is a suspension

Explaintion

6 0
3 years ago
Which amino acids are the primary nitrogen donors for biosynthetic reactions in the cell?
prohojiy [21]
Glutamine and glutamate are the primary nitrogen donors for biosynthetic reactions in the cell.  Glutamine is an α-amino acid that is used in the biosynthesis of proteins. Its side chain is similar to that of glutamic acid, except the carboxylic acid group is replaced by an amide. It is classified as a charge-neutral, polar amino acid. It is non-essential and conditionally essential in humans, meaning the body can usually synthesize sufficient amounts of it, but in some instances of stress, the body's demand for glutamine increases, and glutamine must be obtained from the diet. Glutamate is generally acknowledged to be the most important transmitter for normal brain function. Nearly all excitatory neurons in the central nervous system<span> are glutamatergic, and it is estimated that over half of all brain synapses release this agent. Glutamate plays an especially important role in clinical neurology because elevated concentrations of extracellular glutamate, released as a result of neural injury, are toxic to neurons</span>
5 0
3 years ago
By the 1950s, there was Choose... major variety(ies) of banana being grown commercially in the world. Then, a soil fungus called
koban [17]

Answer:

Produce resistance variety or use of fungicides.

Explanation:

The best solution for the future is to produce resistance variety to Panama Disease or fungicide spray that kills Fusarium fungus that causes Panama Disease. If the variety is resistance against Fusarium fungus so they get no adverse affect from it. The use of chemical that kills Fusarium fungus is also a good method to protect banana industry from the adverse effect of this disease.

4 0
3 years ago
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