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Serga [27]
3 years ago
9

The portions of an antibody molecule that interact with antigen are known as

Biology
2 answers:
Nuetrik [128]3 years ago
8 0
The active site, or variable region. 
dangina [55]3 years ago
7 0

Answer:

The active site, or variable region.  

Explanation:

The active site, or variable region.  

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Welp you have to show the model...
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The ________ functions in the control of movements of the upper legs and the trunk. corticobulbar pathway rubrospinal tract late
GrogVix [38]

The right option is lateral corticospinal tract

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3 0
3 years ago
A lab assistant needs to mix up the following reaction to prepare DNA for an experiment:_________.
lara31 [8.8K]

Answer:

Explanation:

The total solution formed after mixing the components will be

20 μl + 20 μl + 40 μl + 120 μl = 200 μl

The smallest size tube that will hold the entire reaction is:

Firstly convert 200μl to ml

1000 μl = 1 ml

200 μl = X

X = 200 x 1/1000

X = 0.2 ml

The smallest size tube (from the options provided in the question) is 0.25 ml.

The pipetting device that could be used to accurately measure all the needed volumes must be able to measure 20 μl, 40 μl and 120 μl.

The best pipette to accurately take these measurements individually is the P200 micropipette because it has an accurate/useful range of between 20 μl - 200 μl

8 0
3 years ago
The PCR reaction mixture does not include: Group of answer choices DNA containing the sequence to be amplified. DNA ligase. all
Anit [1.1K]

Answer: DNA ligase.

Explanation:

Polymerase chain reaction is a technique used in molecular biology by scientists to make several copies of a DNA sample which enable them to take a smaller portions of it and expand it for more detailed study.

PCR mixture is premixed and contain thermostable DNA polymerase, oligonucleotides primer, four deoxynucleodide triphosphates, Magnesium chlorides, a propietary buffer.

4 0
3 years ago
1.
VikaD [51]

Answer:

1. C. environmental scientists

Explanation:

Environmental scientists serve on matters like the perception of surface methods, assessing alternative energy methods, pollution control and moderation, natural source administration, and the consequences of global atmosphere difference. Environmental issues most ever involve an interaction of environmental, biochemical, and life methods. Environmental specialists bring a methods suggestion to the judgment of environmental obstacles. Key components of an efficient environmental expert involve the capacity to associate space, and time associations as well as quantitative study.

2. A

3. B

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3 years ago
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