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ELEN [110]
3 years ago
5

Once elongation is underway, tRNAs involved in the process occupy a series of sites on the complexed ribosome. The occupation of

sites occurs in the following order.
a. A Site, P Site, E Site, S Site
b. P Site, E Site, A Site
c. A Site, S Site, E Site
d. A Site, P Site, E Site

When a peptide bond is formed between two amino acids, one is attached to the tRNA occupying the P site and the other _______.

a. is free in the cytoplasm
b. Is attached to the tRNA occupying the E site
c. is attached through hydrogen bonds to the mRNA
d. is attached to the tRNA occupying the A site

Which of the following statements concerning peptide bond formation is correct?
a. It is catalyzed by an enzymatic protein.
b. It uses water
c. It requires GTP
d. It is catalyzed by peptidul transferase
Biology
1 answer:
mash [69]3 years ago
4 0

Answer:

1. (d) A site, P site, E site

2. (d) is attached to the tRNA occupying the A site

3. (d) It is catalyzed by peptidul transferase

Explanation:

1. The functional ribosome inititiation complex, have three sites that bind tRNAs: the aminoacyl (A) site, the peptidyl (P) site and the exit (E) site. Initiation occurs with binding of the fmet-tRNA at the P site. Afterwards, once elongation is underway, tRNAs involved in the process occupy the three sites in the following order: A site, P site, E site.

2. The formation of a peptide bond during protein synthesis involves the transfer of an amino acid bound to the tRNA at the P site to the amino group of a second amino acid at the A site. When a peptide bond is formed between two amino acids, one is attached to the tRNA occupying the P site and the other is attached to the tRNA occupying the A site.

3. The formation of a peptide bond during protein synthesis is catalyzed by the enzyme peptidyl transferase.

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Answer:

Buffy coat.

Explanation:

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olga2289 [7]

Answer:

C.

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Explanation:

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3 years ago
Do you think most traits are inherited the way mouse fur color is? What do you think this is?
Alex73 [517]

Answer:

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Explanation:

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5 0
3 years ago
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The number of ducks in a pond is equal to the square root of the number of fish, and the number of turtles is equal to the cube
brilliants [131]

Answer:

There are 64 fish, 8 ducks and 4 turtles.

Explanation:

From the question, there can be from 2 to 99 fish in the pond. However, there cannot be fractions in the number of fish, ducks or turtles. Hence, the number of fish must have both of a perfect square and perfect cube. The perfect squares from 2 to 99 are 4, 9, 16, 25, 36, 49, 64 and 81. The perfect cubes from 2 to 99 are 8, 27 and 64. Since only 64 fits both criteria, the number of fish is 64. The number of ducks is the square root of number of fish, which is the square root of 64. The square root of 64 can be either positive 8 or negative 8. However, there cannot be negative numbers, so there are 8 ducks in total. The number of turtles is the cube root of the number of fish, which is the cube root of 64 and it is 4.

7 0
3 years ago
what cycle do the light independed reaction use to tuen carbon dioxude into glucose, A. Calvin cycle, B. Krebs cycle, C. Gylcoly
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Answer:

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6 0
4 years ago
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