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bixtya [17]
2 years ago
6

Which test tube(s) acts as a negative control against protein

Biology
1 answer:
Nady [450]2 years ago
7 0

Answer:

Water plus Biuret's reagent will act as a negative control in the proteins

Explanation:

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A pond contains many different types of organisms. The table below lists some of these organisms and their methods of reproducti
ss7ja [257]

Answer:

Option A, Pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction

Explanation:

Genetics variation allows as organism to evolve in a way to be able to cope up with the existing or changing environmental condition. Now, a Pantala flavescens undergoes sexual reproduction, thus only this creature has the ability among all the given organism to evolve genetically and be able to survive in this environment.  All the remaining organisms reproduce asexually and hence there is no variation with in them and hence it would be difficult for these organisms to cope up with changing environment.

Hence, option A is correct.

3 0
3 years ago
You add the following components (in the correct volumes and concentrations) to a tube to perform a PCR reaction Buffer Magnesiu
uranmaximum [27]

Answer:

b. False

Explanation:

These components are not sufficient to successfully perform a PCR reaction. Deoxynucleoside triphosphates (dATP, dGTP, dCTP, dTTP) are missing so that the PCR reaction can occur perfectly.

The PCR technique allows a specific fragment of the DNA molecule to be amplified thousands of times in just a few hours. This technique revolutionized research in molecular biology because it had taken a long time for DNA amplification. From PCR it is possible to obtain enough copies of a part of DNA to detect and analyze the sequence that is the target of the study.

For a PCR reaction to be performed a solution with some components must be prepared. These components are:

  • Magnesium chloride buffer (to optimize reaction and act as a cofactor for polymerase)
  • Forward and reverse primers (to customize the start of the enzyme reaction)
  • DNA polymerase (Enzyme required for replication of desired DNA region.)
  • DNA Template (the DNA to be copied)
  • PCR-grade water
  • Deoxynucleoside triphosphates: dATP, dGTP, dCTP, dTTP (act as bricks in the construction of DNA molecules).
3 0
3 years ago
Determine 3examples of surface water
vodomira [7]

Water...............

6 0
3 years ago
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Describe how the three different types of seismic waves move and affect the movement of the material they pass over or through.
son4ous [18]
Seismic waves travel in all the directions and used to determine the magnitude of an earthquake. There are 3 types of seismic waves that move in different directions.
1. P wave: It is the fastest of all three waves that travel through the interior of the earth and are compressive waves.
2. S wave: Secondary waves generally follow the P waves and travel through the interior of the earth but are shearing waves.
3. Surface wave: This is the slowest of all three waves that moves close to the surface of the ground.

These waves affect the movement of other materials when they are passing through the interior or surface of the earth.
P waves can move through the solid rocks and even liquids. S waves do not travel through the  liquids such as water and molten magma. Surface waves causes shaking of the ground and do not go deep inside the earth.
7 0
3 years ago
Given an atom with 8 protons how many electrons are there
suter [353]
8 electrons if it is a neutral atom.
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3 years ago
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