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Sav [38]
3 years ago
10

Who help me?, this has me crazy

Biology
1 answer:
denis23 [38]3 years ago
4 0
It’s D, other answers don’t make sense
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Three boats were moving across the surface of a smooth lake. The gray and pink boats have the same mass, and both of these boats
garik1379 [7]

Answer: There is no diagram but I had this on a test last week. The answer is the gray and pink boats experienced the strongest force because they are both more massive than the orange boat, and they all changed speed by the same amount.

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2 years ago
Organisms that are most likely to use evaporative cooling would be ____________.
TEA [102]

Answer:

Organisms That Are Most Likely To Use Evaporative Cooling Would Be Large Terrestrial Organisms Living In A Hot And Dry Climate Small Flying Organisms Living In A Hot And Dry Climate Large Terrestrial Organisms Living In A Warm And Wet Climate Small Flying Organisms Living In A Warm And Wet Climate.

Explanation:

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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
2 years ago
Use the drop-down menus to select the names of the labeled structures.<br> A: <br> B:
Vaselesa [24]
B - the petal
A-stamen
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2 years ago
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Plants use glucose to synthesize cellulose. Which statement accurately describes this process?
Sergeeva-Olga [200]

Answer:

C

Explanation:

Sugar, which is a product of the photosynthetic process of green plants can be converted to glucose (a simple carbohydrate). Enormous amount of these glucose molecules can be linked together to form a complex carbohydrate called cellulose, which is a polysaccharide because it is made up of a long chain of glucose molecules. The cellulose is ultimately used to build the cell wall of plants.

Anabolism is the production of a complex molecule by a living organism from a much simpler one. Since, cellulose is produced by the building up of glucose molecules, the process can therefore, said to be anabolic

6 0
2 years ago
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