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ivann1987 [24]
3 years ago
9

Why is a change from ACG to ACT a big problem?

Biology
2 answers:
Neporo4naja [7]3 years ago
5 0
Guanine does not pair with Thymine. In a DNA strand, adenine (A) pairs with thymine (T), while guanine (G) pairs with cytosine (C). Therefore, that must mean there was a problem or a mistake with the duplication of the strand.
irina [24]3 years ago
3 0
Because it would result in a different amino acid being coded. Each amino acid in a strand is specified for the protein being built.
When mRNA uses ACG as a template to make amino acids, it will get UGC - which is a Cysteine amino acid.
But if ACT is used as a template, mRNA will get UGA - which is a stop codon. This will make the amino acid strand shorter and would result in a different protein being built.
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oksian1 [2.3K]

.

Explanation:

1)The cell membrane functions as a semi-permeable barrier, allowing a very few molecules across it while fencing the majority of organically produced chemicals inside the cell. Electron microscopic examinations of cell membranes have led to the development of the lipid bilayer model (also referred to as the fluid-mosaic model). The most common molecule in the model is the phospholipid, which has a polar (hydrophilic) head and two nonpolar (hydrophobic) tails.

2) simple diffusion across the cell plasma membrane. The structure of the lipid bilayer allows small, uncharged substances such as oxygen and carbon dioxide, and hydrophobic molecules such as lipids, to pass through the cell membrane, down the concentration gradient is , by simple diffusion.

3) some molecules, such as carbon dioxide and oxygen, can diffuse across the plasma membrane directly, but others need help to cross its hydrophobic or however, because they are charged the polar, they can't cross the phospholipid part of the membrane without help .

4) during fission a copy of the DNA is made and attached to the cell membrane as well. As this cell elongate in preparation for fission, the two DNA copies are pulled apart two opposite ends of the cell. New membrane material is deposited between the two ends of the cell, and a new wall grows between them .

5) UMASS STEM-ED From Bubbles to Cell Membranes Workshop. Bubble ... dynamic nature which can't be properly appreciated in a static textbook. ... the small thread through one of the straws.

6) example of passive transport and active transport across a cell membrane so, cell membranes are semipermeable meaning they have control over what molecules can or cannot pass through. Some molecules can just drift Inn.

4 0
3 years ago
Put the following mitosis and cytokinesis images in order<br> 1st<br> 2nd<br> 3rd<br> 4th<br> 5th
son4ous [18]

Answer:

Explanation:

hope this helps

8 0
2 years ago
Alexandra fleming was working with a bacteria called staphylococcus which looked like bunches of grapes under the microscope. He
denis-greek [22]

Answer:

In 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He noticed that a mold called Penicillium was also growing in some of the dishes. A clear area existed around the mold because all the bacteria that had grown in this area had died. In the culture dishes without the mold, no clear areas were present.

Fleming thought that the mold must be producing a chemical that killed the bacteria. He decided to isolate this substance and test it to see if it would kill bacteria. Fleming transferred the mold to a nutrient broth solution. This solution contained all the materials the mold needed to grow. After the mold grew, he removed it from the nutrient broth. Fleming then added the nutrient broth in which the mold had grown to a culture of bacteria. He observed that the bacteria died. He also added the same type of broth that had not been exposed to the mold, to a culture of the same type of bacteria. Nothing happened to the bacteria.

Explanation:

n 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He noticed that a mold called Penicillium was also growing in some of the dishes. A clear area existed around the mold because all the bacteria that had grown in this area had died. In the culture dishes without the mold, no clear areas were present.

Fleming thought that the mold must be producing a chemical that killed the bacteria. He decided to isolate this substance and test it to see if it would kill bacteria. Fleming transferred the mold to a nutrient broth solution. This solution contained all the materials the mold needed to grow. After the mold grew, he removed it from the nutrient broth. Fleming then added the nutrient broth in which the mold had grown to a culture of bacteria. He observed that the bacteria died. He also added the same type of broth that had not been exposed to the mold, to a culture of the same type of bacteria. Nothing happened to the bacteria.

6 0
2 years ago
The plants in level 1 of a food pyramid obtain 30,000 units of energy from the Sun. How much energy is available for the organis
Stels [109]

Answer:

level 2 = 3,000  level 3=300

Explanation:

Only 10 percent will be transferred to the next level and 10 percent of 30,000 is 3,000. 10 percent of 3000 is 300

4 0
2 years ago
The ruler who worked hard to introduce Western social customs into Russia was
umka21 [38]
It depends on the period. It could be Catherine the Great.
3 0
3 years ago
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