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pishuonlain [190]
2 years ago
8

Serological testing is based on the fact that: Select one:

Biology
1 answer:
mihalych1998 [28]2 years ago
7 0

Answer:

B. Antibodies react specifically with an antigen.

Explanation:

Serological tests are blood tests that look for antibodies in your blood. They can involve a number of laboratory techniques. Flucculation tests are based on the precipitation that takes place when antibody and specially prepared antigens are mixed together

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You experimentally change the DNA sequence directly upstream of a start codon of an operon in E coli to investigate the function
Phoenix [80]

Answer:

Mutation occurred in ribosome binding site that serves as binding site for 30S ribosomal subunit of <em>E. coli</em> and allows the process of protein synthesis to begin.

Explanation:

The initiation of protein synthesis in bacteria requires binding of the ribosome to the ribosome binding site. The ribosome binding site in bacteria consists of the initiation codon "AUG" and the preceding Shine-Dalgarno sequence. The AUG initiation codon and Shine Delgrano sequence are around 10 bases apart.

The sequence is polypurine hexamer and is represented by 5' ...AGGAGG...3'. Shine-Delgrano sequence is complementary to the conserved sequence present at the 3' end of 16SrRNA of the 30S subunit of the bacterial ribosome. Binding of Shine Delgrano sequence of ribosome binding site and the complementary sequence of the 30S ribosomal subunit marks the first step in the initiation of protein synthesis.

Any mutation in the ribosome binding site would not allow the process of protein synthesis to start or would reduce the rate of the initiation of protein synthesis.

8 0
3 years ago
Trying to complete an assignment form, does anyone know the answers to these questions?
bogdanovich [222]

Answer:

  • chromosome
  • g

Explanation:

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7 0
2 years ago
Match the following tissue types with the correct description. 1. epithelium lines the stomach 2. muscular moves the body 3. ner
Minchanka [31]

Answer:

Nervous: carries messages

muscular: moves the body

epithelium: found in cartilage

connective: found in cartilage

Explanation:

7 0
2 years ago
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Why can’t certain blood types be combined?
scZoUnD [109]

Answer:

Because it causes complications with the person and the blood

Explanation:

3 0
3 years ago
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How does seed-cutting differ from shelterwood cutting? a. Shelterwood cutting removes all trees within a given area. b. Shelterw
Nina [5.8K]

Correct answer: B). Shelter wood cutting takes place over several years

Shelterwood cutting is the progressively cutting of the forest, in order to establish the growth of the new generation of the seedlings of a particular species without planting.

It is a method of natural tree reproduction under the shelter of old trees, which are removed successively by cutting the tree in order to provide the increased amount of light to the new seedlings. It is a slow process and takes lot of time.







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3 years ago
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