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AleksAgata [21]
3 years ago
5

The sulfur reduction test is not able to differentiate h2s produced by anaerobic respiration and h2s produced by putrefaction. i

s this inability the result of poor sensitivity or poor specificity of the test system?
Biology
1 answer:
olga nikolaevna [1]3 years ago
7 0

Answer;

- Poor specificity

Explanation;

-This inability is the result of poor specificity.

-The Sulfur Reduction Test is used to differentiate members of Enterobacteriaceae, especially the sulfur-reducing Salmonella , francisella, Proteus from the non-reducing Morganella Morganii , Providencia Rettgeri. It is performed using the SIM medium.

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Procedure
lana66690 [7]

The correct order of steps in an experiment would be:

  • Identify the variables.
  • Write out your hypothesis in an if/then format.
  • Gather your materials.  
  • Analyze the data.
  • Write your conclusion.

<h3>What is an experiment? </h3>

An experiment is a term to refer to the process by which a hypothesis is supported/disproved. The experiments serve to explain the cause-and-effect relationship according to the results obtained.

Experimentation has some important steps that we must follow to demonstrate our ideas regarding a scientific manifestation, these steps are:

  • Identify the variables: We must identify the factors that we can manipulate so that the result changes.
  • Write our hypothesis: Establish a hypothetical result that we are going to demonstrate.
  • Gather the materials: We must have all the materials and variables to be able to carry out our experiments.
  • Analyze the data: When we do an experiment we must record everything we see and then analyze it to examine each step and the procedures performed.
  • Write the conclusion: After analyzing the data obtained, we can write a conclusion about the experiment carried out and the result obtained.

Learn more about experiments in: brainly.com/question/9199868

5 0
2 years ago
Match the following.
valkas [14]

Answer:

1 . The stage on the first meiotic division when the homologous chromosomes move to opposite poles but the sister chromatids remain together

: b. Anaphase I

2 . The stage in the second meiotic division where sister chromatids migrate to opposite poles

: c. Anaphase II

3 . A structure on the chromosome that holds a pair of chromatids together during replication

: f. centromere

4 . A double-stranded chromosome following replication attached by a centromere

: d. chromatid

5 . A condition where non-sister chromatid of homologous chromosomes exchange genes

: e. crossing over

6 . The stage in the first meiotic division where the homologous chromosomes line up as a pair

: a. Metaphase I

7 . The stage in the second meiotic division where the chromatid pair lines up at the equator of the cell: g. Metaphase II

Explanation:

DNA replication occurs during the S phase of the interphase of the cell cycle. The replicated DNA molecules are accommodated in two sister chromatids of a chromosome that are held together by a centromere.  

During prophase I, the chromatids of a homologous chromosome pair exchange a genetic segment. This process is called crossing over. It generates recombinant chromatids with new combinations of genes.

Metaphase I of meiosis I includes the alignment of homologous pairs of chromosomes at the cell's equator. This is followed by separation and movement of homologous chromosomes to the opposite poles of the cell during anaphase I.  

Metaphase II of meiosis II includes the alignment of individual chromosomes, each with two sister chromatids, on the cell's equator. During anaphase II, splitting centromere separates the sister chromatids which then move to the opposite poles of the cell.

3 0
3 years ago
Is there a scientific reason why adults don't really understand their children?
Alenkinab [10]
Throughout their teenage years, children's minds are literally being rewired. Teenagers are unable to comprehend facial expressions or other's emotions which can make it for others to understand them or for them to even understand themselves.
8 0
3 years ago
All climates near the equator are warm. true or false
Alenkasestr [34]

Answer:

true

Explanation:

the equator is warmer than the poles because the equator is significantly closer to the sun than are the poles (i.e. the equator "bulges out" toward the sun)

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3 years ago
Why does vultures smell help them? I’m sentience form please
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Answer:

!fodkrlpelddksps make

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