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NNADVOKAT [17]
4 years ago
9

Maribel places her backpack and lunch bag on a lab table where there are lab materials. What is the safest way for Maribel to ar

range the items?
Biology
1 answer:
Veronika [31]4 years ago
3 0

Answer:

she should arrange them away from lab materials. She could put them to the side or under the table

Explanation:

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Which statement about natural selection is true
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please write the statements to get help


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3 years ago
Which age related change can cause nocturia? decreased ability to concentrate urine decreased production of antidiuretic hormone
pogonyaev
Nocturia, or nocturnal polyuria, is a medical term which means excessive urination at night. The two primary causes of nocturia are hormone imbalance and vesicle problems. Arginine vasopressin (AVP) and atrial natriuretic hormone (ANH) are two of the hormones that controls the body water level. AVP is an antidiuretic hormone produced by hypothalamus while ANH is released by cardiac muscle cells in response to high blood pressure. Arginine vasopressin (AVP) is an antidiuretic hormone which increases water absorption in the collecting duct systems of of kidney nephrons subsequently decreasing urine production. In the abovementioned question, nocturia is caused by decreased production of antidiuretic hormone, which is the arginine vasopressin. Nocturia, moreover, is can be caused by congestive heart disease, nephritic syndrome or liver failure. Excessive nighttime drinking and obstructive apnea can also lead to nocturia
8 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
The DNA-binding proteins that recognize and accurately initiate transcription at specific eukaryotic promoter sequences are call
Vesna [10]

Answer:

Transcription factors

Explanation:

  • Transcription factors are the proteins that are responsible in the process of conversion of DNA into RNA.
  • These proteins have specific sites present on the DNA where they bind and thus, facilitate the process of transcription.
  • These proteins have domains that help them to bind to these specific sites. 
  • These transcription factors help in the regulation of fo transcription by controlling the expression of the gene so that they are expressed in the right amount and correct time. 
4 0
3 years ago
What is a career that combines science with another interest
alexdok [17]
Art conservation science, marine science, and nuclear science can be combined with science with another interest. Anyone can have this combination with a little knowledge from each of them but later, of course, they will study and will have a strong grip over the concepts of this combined study program.
You may learn biodiversity in conservation sciences while having a background knowledge you have learned in biology previously. Whereas marine science, which is also known as oceanography can also be a great choice. You study the physical and biological aspects of the oceans. Nuclear science is the most interesting one as you enter into the world of atomic particles.<span>
</span>
4 0
4 years ago
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