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2 years ago

What can you conclude based on your observation of the pictured glucose (dextrose) fermentation test?

Biology

1 answer:

Bumek [7]2 years ago

6 0

I found the exercise on the internet and attached is the <span>glucose (dextrose) fermentation test mentioned.
It can be concluded that the organism can't ferment glucose. In this test, if the organism ferments it is produced acid turning the medium more acidic and making its colour turn yellow, which is not verifiable. It can also be concluded that there wasn't production of any gases as there wasn't any metabolic activity.</span>

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In a scale model of the solar system, if the sun is represented by the ball with a diameter of about 8 inches, how large with th

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2 years ago

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Which of the following expressions gives the heat of vaporization of the liquid

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2 years ago

Why must cells be able to both transcribe and replicate their DNA? (2 points)

Artemon [7]

Answer: The correct answer is D) Replication creates new DNA while transcription creates mRNA.

Replication is a genetic process in which DNA ( deoxyribonucleic acid) is duplicated so that two copies of the genetic material is prepared. This is important for cell division.

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Thus, the correct option is D)

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2 years ago

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Why should you use sunscreen and a hat when you are outside in the sun

damaskus [11]

Answer: It is not healthy.

Explanation:

Wearing a hat shields your eyes from the sun, which can cause your retinas to burn, this is why sunglasses are also recommended, it helps stop too much light from entering your eyes, as well as UV rays.

Wearing sunscreen can protect your skin from harmful sun rays. These harmful sun rays can cause skin cancer by putting a protective layer over the skin.

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9 months ago

Sequence of amino acids in a polypeptide chain of protein molecule coresponds to the sequence of nucleotides on mRNA for that pr

tamaranim1 [39]

Answer:

330

Explanation:

A codon is the sequence of three nucleotides on mRNA that refers for particular amino acid during translation (protein synthesis) process. The four nucleotides arrange themselves in various combinations to produce different codons. The tRNA with corresponding anticodon attach the particular amino acid to polypeptide chain during translation.

Remember there is always a stop (UAA) and start codon (AUG) for the synthesis of polypeptide and stop codon does not contribute for any amino acid. It just terminate the polypeptide chain synthesis. We know that a codon is made up of three nucleotide so our calculation will be.

993-stop codon =990

990/3=330

So that's why 330 amino acid will be incorporated in the polypeptide chain.

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3 years ago