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3 years ago

The tertiary structure of a polypeptide is the Select one:_________

Biology

1 answer:

Rufina [12.5K]3 years ago

3 0

Answer:

The correct answer is C. The tertiary structure of a polypeptide is the overall three-dimensional shape of a fully folded polypeptide.

Explanation:

A polypeptide is a molecular chain composed of at least 10 amino acids (which are the molecules that make up proteins). When we talk about its tertiary structure, it refers to the complete overall three-dimensional structure of the polypeptide units of a given protein, where the polypeptide chain is fully folded and compacted. This folding is facilitated by unions called disulfide bonds, which are created from the cysteine residues, these bonds (called disulfide bridges as well) help to stabilize many polypeptides.

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Answer:

Explanation:

We'll represent the dilution as the volume transferred/total volume in the tube after transfer. So for the first dilution, 1 ml of culture was added into 9ml of broth bringing the total volume to 10 ml i.e 1/10

For the second dilution, 0.1 mL was added to 0.9mL of broth bringing the total volume to 1mL i.e 0.1/1.0 (this is also the same as 1/10). In relation to the stock culture, this is represented as 1/100 (that is 1/10 (first dilution) * 1/10 (second dilution)

Giving that the same was done for dilution 3 and 4,

third dilution is represented as: 1/10 and the fourth as 1/10 as well

In relation to the stock, dilution 3 is 1/1000

dilution 4 is 1/10000

a. the dilution in the third tube is $\frac{1}{1000} = 10^{3$ or 1.0* $10^{3}$

b. the dilution spread onto the agar plate is the fourth dilution, that is, $\frac{1}{10000} = 10^{4}$ or $1.0*10^{4}$

c. Since the grad student got 386CFU/0.2mL (200 uL = 0.2mL),

the cells in 1mL is: 386/0.2 = 1930 = 1.93 * $10^{3}$

the cells in 1800mL is therefore 1930*1800 = 3,474,000 = 3.4*10 $10^{6}$

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This is easy its Marsupials

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Answer:

See the answer below.

Explanation:

The arrival of cacao beans in the factory can be likened to the transcription of mRNA using a DNA template.

Sorting of the best beans at the factory can be likened to splicing process. During splicing, the introns are removed from the newly synthesized mRNA and the exons are joined together. The introns represent the non-coding portion of the mRNA while the exons represent the coding sequence.

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jeka57 [31]

1) Carbohydrates—> monosaccharide (sugar)
2) Lipids —> fatty acid
3) Proteins —> amino acids
4) Nucleic Acids —> nucleotide

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