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3 years ago

Medicines that kill bacteria are known as vaccinations. True or False

Biology

1 answer:

irina1246 [14]3 years ago

7 0

I would think it would be false considering part of the virus you are trying to get immunity to is in a vaccine

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How many amino acids are affected by frameshift mutation?

puteri [66]

A reading frame consists of groups of 3 bases that each code for one amino acid<span>. A frameshift mutation shifts the grouping of these bases and changes the code for amino acids. The resulting protein is usually nonfunctional. Insertions, deletions, and duplications can all be frameshift mutations.

Hope this helps.</span>

4 0

4 years ago

What pigment is derived from vitamin a

g100num [7]

Retinol undergoes oxidation to produce retinal, which when combined with the protein opsin results in the formation of the light-sensitive pigment rhodopsin. You can see in black and white because rhodopsin is the pigment that gives you night vision.

<h3>What pigment is created using vitamin A?</h3>

Rhodopsin, also known as visual purple or the light-sensitive pigment found inside rod and cone cells of the retina, requires the retina as a structural component in order to function.

Yellow, orange, and red fruits and vegetables are colored by a pigment called carotenoids. Some carotenoids can be transformed into vitamin A by your body. The two sources of vitamin A are as follows: Fish, liver, dairy products, eggs, and organ meats are all sources of preformed vitamin A.

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3 0

1 year ago

Which of the following terms describes this type of information ?

Anika [276]

Answer:

Pseudoscience

Explanation:

5 0

3 years ago

Give an example of potential and kinetic energy in a living organism.

Hitman42 [59]

Answer:

Potential and kinetic energy is in humans. For example, when I am running, I am using kinetic energy. However, when I am sitting and eating some food, then I am reserving some energy and my energy is at rest which is an example of potential energy.

Explanation:

6 0

3 years ago

The trp and lac operons are regulated in various ways. how do bacteria regulate transcription of these operons?

Vlada [557]

Operon is not transcribed:

-lac operon: lactose absent

-trp operon: tryptophan present

Positive control transcription of Operon does not speed it up:

Lactose and glucose are present, -lac operon

Tryptophan is lacking in the -trp operon.

Operon is transcribed quickly through positive control:

-lac operon: lactose present, glucose not

Only negative control is used to regulate the trp operon. The operon genes are not transcribed when tryptophan is present.

Both positive control and negative control are used to control the lac operon.

Negative control: —Transcription is inhibited when lactose is missing due to the activity of the repressor protein.

—The repressor protein is deactivated and transcription is triggered when lactose is present.

Positive control: —In the absence of glucose, another regulatory protein (CAP) attaches to the lac operon's promoter, speeding up transcription in the presence of lactose.

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1 year ago