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RoseWind [281]
2 years ago
10

Khorana used synthetic mrnas to determine genetic code possibilities. to do so, he translated synthetic mrna in vitro in the pre

sence of individual 14c-labeled amino acids. using the repeating dinucleotide poly-ug, he identified a polypeptide with which two amino acids alternating?
Biology
1 answer:
meriva2 years ago
7 0
For the answer to the question above, I think this is <span>False and the answer is based on the book, Nirenberg, and Matthaei. 19- unlabeled amino acids. Cys-Val-Cys-Val. (pg. 318 & 319)</span>. I hope I helped you somehow. Have a nice day!
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Name each numbered stage in the plant cell cycle diagram:
zheka24 [161]

Answer:

1. Metaphase

2. Prophase

3. Telophase

4. Interphase

5. Interphase

6. Interphase

7. Anaphase

8. Interphase

9. Telophase

10. Metaphase

11. Interphase

12. Interphase

13. Interphase

14. Interphase

15. Prophase

16. Interphase

17. Metaphase

18. Anaphase

19. Interphase

20. Interphase

21. Prophase

22. Interphase

Explanation:

The cell cycle is divided into two main divisions. The Interphase ad the M phase or the Mitotic phase.

Throughout Interphase, the cell is not dividing yet, but it is preparing to divide. It synthesizes the nutrients it will need, and grows in preparation to become two cells. This is actually the phase the cell spends the longest time.

Mitotic phase is when the cell starts to divide. It is separated into:

Prophase:

In this phase the chromosomes are condensed and mitotic spindles start to form. These spindles are made up of microtubules that will help later on to split the chromosomes. The nuclear membrane disappears so that the chromosomes will be free to move.

Metaphase

This phase is marked by the alignment of the chromosomes in the middle of the cell. They line up and you will find the asters at the opposite ends of the cell, where the microtubules stem from, attaching themselves to the center of the chromosomes, which we call the kinetochore.

Anaphase

In this phase you will see that the chromosomes are separated by the spindle fibers and are pulled at opposite ends of the cell. The cell then becomes longer by the other spindle fibers that are not attached to a chromosome.

Telophase

This phase is the end phase. The two sets of chromosomes are then enclosed by new nuclear membranes forming two nuclei and other cellular structures just as the cells are about to separate completely. As the two new cells move further apart, in plant cells a cell plate forms, dividing the two cells. The movement of the two cells splitting apart is called cytokinesis and it happens just as mitosis is about to end.

Attached is a picture of the cell cycle of a plant cell.

4 0
1 year ago
How are pure carbon, oxygen, &amp; hydrogen different from the compound ethanol which contains all three of those elements
Agata [3.3K]

Answer:

They are different because ethanol is a compound that is made by a certain amount of carbon, oxygen and hydrogen, these are the elements that made up ethanol.

Explanation:

Think of it like this ethanol is a cake and carbon, oxygen and hydrogen is the eggs, flours and sugar that is used to make the cake.

7 0
1 year ago
In experiments testing the cocktail party effect, most participants were unable to do any of the following except _____________.
Karo-lina-s [1.5K]
<span>In a coctail party effect, participants were unable to do three of the choices but they notice specific changes when the unattended speech was played backward. An example of a cocktail party effect is when a partygoer can only focus one conversation in a room which is very loud. The other choices involves with the tone of voice but except letter d which involves the arrangement or sequence in reading.</span>
8 0
2 years ago
Read 2 more answers
What is part of the third step in troubleshooting a computer problem?
Dima020 [189]

Answer:

Explanation:

First step

We can locate the problem and identifying it, there are tools to identify some computer problems or just we can use the logic.

Second step

Researching ways to solve the problem, we can find any solution on the internet, we can research in forums or technology platforms.

Third step

Trying a number of simple fixes initially, If we find different solutions, we can start to try with some of them.

Fourth step

Seeking help to solve the problem, if we could not resolve the problem, we can call technical service or any specialist.

7 0
1 year ago
Read 2 more answers
Three small bones connect the tympanic membrane to the oval window. what is the function of these bones??
lesantik [10]
The bones are: malleus (hammer-shaped) , incus (anvil-shaped) and stapes (stirrup-shaped).

They are together known as ear ossicles.

They transmit the vibrations from the eardrum or tympanum to the inner ear.
4 0
1 year ago
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