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Snowcat [4.5K]
3 years ago
15

Explain how random mutations such as those in pathogens with a mutator phenotype may arise in the DNA of an organism

Biology
1 answer:
Arada [10]3 years ago
8 0

Answer:

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time.

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Which of the following statements are true with regard to Mycobacterium?
Sergeu [11.5K]

Answer:

2, 4 and 5

Explanation:

The wall of Mycobacterium tuberculosis (a typical Mycobacterium) has a high lipid content, hence it does not respond to gram staining. Instead, acid-fast staining or Ziehl-Neelsen stain is used in its identification.

The cell wall of Mycobacterium species is thicker in comparison with other bacteria in the sense that it is hydrophobic, waxy and contains a unique acidic wax, known as mycolic acid.

Mycobacterium tuberculosis is an obligate aerobe, which means it is strictly dependent on oxygen. It thrives (multiplies) best under this condition.

Some species of Mycobacterium ate saprophytic i.e. they live on dead organic matter while some are obligate parasites that live on tissues e.g M.tubercosis and M.leprae causes tuberculosis and leprosy in humans respectively.

4 0
3 years ago
Describe how glucose formed in a leaf becomes starch stored in a potato tuber
larisa86 [58]
<h2>⚠ANSWER⚠ </h2>

↪Glucose is usually converted into starch for storage. Starch is better for storage than glucose because it is insoluble. Plants like potatoes and other tubers, and also fruits like the banana store starch for later use. This starch is stored by special organelles, or cell subunits called amyloplasts.

<u>☆</u><u>.</u><u>.</u><u>.</u><u>hope this helps</u><u>.</u><u>.</u><u>.</u><u>☆</u><u> </u>

4 0
2 years ago
Read 2 more answers
The white portion of the tough outer coat of the eye is called the ________.
Free_Kalibri [48]

Answer:

Sclera

Explanation:

Sclera is also known as the white of the eye. Sclera is the tough white portion of the outer coat of the eye.

Sclera protects the eye from the inside and helps in maintaining the eye structure. Sclera mainly consists of collagen and elastic fibers. Sclera increases the nonverbal communication in an organism.

Thus, the correct answer is option (a).

8 0
3 years ago
Read 2 more answers
What is rna , in biology
Arisa [49]
Ribonucleic acid is what RNA stands for
5 0
3 years ago
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The plasma membrane is composed of a phospholipid bilayer with embedded proteins. What is one of the functions of the embedded p
Anastaziya [24]

Answer: B. They allow for specific substance to travel throughout the cell.

Explanation: I know this because carrier proteins and channel proteins are some types of embedded proteins.

4 0
3 years ago
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