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Nimfa-mama [501]
3 years ago
7

A mutagen is

Biology
1 answer:
Studentka2010 [4]3 years ago
3 0

Answer:

A a living thing that has undergone a mutation.

Explanation:

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Mitosis results in the formation of how many cells
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Mitosis of a single cell results in two daughter cells
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Define active transport in your own words
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Answer: Define Active transport

Explanation: The moving of molecules or ions across the cell membrane.

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Why do scientists use the International System of Units (SI)?
saw5 [17]

Answer:

It should be answer C.

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The main reason to create SI units was to be able to communicate everyone's results internationally, and because we all you different units, the SI units fixed that.

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An immunoglobulin (Ig) molecule, of any class, with regions symbolized as C or V, H or L , has a light chain made up of _______.
Nadusha1986 [10]

An immunoglobulin molecule of any class with regions symbolized as C or V, H or L, has a light chain made up of one C region and one V region.

The glycoproteins known as immunoglobulins (Ig), often known as antibodies, are created by plasma cells. A number of immunogens, including bacterial proteins, promote B cells' conversion to plasma cells. These cells, which make proteins, are involved in humoral immune reactions to bacteria, viruses, fungi, parasites, cellular antigens, chemicals, and synthetic compounds. Using a B-cell receptor, the immunogen or antigen adheres to the B cells' cell surface (BCR).

As a result, a signal is generated that directs the activation of transcription factors, leading to the manufacture of highly specific antibodies for the immunogen that initially activated the B cell. Furthermore, one B cell clone produces immunoglobulin (specificity). Two light chains and two heavy chains that alternate in a light-heavy-heavy-light pattern make up antibodies, also known as immunoglobulins. Therefore, choice A is the right response.

Learn more about immunoglobulins here, brainly.com/question/28203010

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8 0
1 year ago
The outermost membrane of a euglenid chloroplast is thought to have been derived from what part of an original host cell that en
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The plasma membrane of the enveloped alga cell serves as the source of the apicoplast's second outermost membrane.

<h3>Where did all chloroplasts come from?</h3>

Chloroplasts were first established in eukaryotes through an endosymbiotic relationship with a cyanobacterium; they later spread through the evolution of eukaryotic hosts and the subsequent engulfment of eukaryotic algae by formerly nonphotosynthetic eukaryotes.

<h3>How did eukaryotic cells develop mitochondria and chloroplasts?</h3>

Chloroplasts and mitochondria most likely developed from engulfed bacteria that once existed as autonomous organisms. An aerobic bacterium was eventually swallowed by a eukaryotic cell, which later established an endosymbiotic bond with the host eukaryote and gradually transformed into a mitochondrion.

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1 year ago
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