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VMariaS [17]
3 years ago
10

What are two things that can be done to maximize the chances of recovering parasites from a fecal smear?

Biology
1 answer:
RideAnS [48]3 years ago
7 0
<span>Sedimentation - uses solutions of lower specific gravity than the organisms, which concentrated in the sediment. This technique is recommended for general diagnostic laboratories because it is easy to perform and less prone to technical errors.

Flotation - this technique uses solutions of higher specific gravity than the parasitic organisms so the organisms float and the debris sinks producing a cleaner material while the disadvantage is that walls of cysts and eggs collapse that may blocking its identification.<span>
</span></span>
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Arrange the following list of eukaryotic gene elements in the order they would appear in the genome and in the direction travele
Leni [432]

Answer:

The alignment of the elements in the following sequence will take place in the eukaryotic genome:  

a. Promoter

b. Nucleotide to which methylated cap is added

c. 5 prime UTR

d. Initiation codon

e. Splice donor

f. Splice branch site

g. Splice acceptor

h. Stop codon

i. 3 prime UTR

j. Transcription terminator

k. Poly A addition site

After the process of splicing, the ultimate transcript will comprise the elements b, c, d, h, i. In eukaryotes, the RNA polymerase begins the process of transcription after it crosses the promoter region, and ceases at the transcription terminator. At the time of RNA processing, a 5 prime cap is supplemented to the transcript, splicing occurs, and a poly-A tail is supplemented. The 5 prime UTR and 3 prime UTR regions are found in the final transcript, that is, the mature RNA, however, are not translated.  

4 0
4 years ago
During which stage of mitosis do the centromeres split
larisa86 [58]
Mitosis is split into 4 phases.
P - prophase
M - metaphase
A - anaphase
T - telophase

During Metaphase, Chromosomes align singly along the metaphase plate.

During Anaphase, kinetochore microtubules shortens and non-kinetochore microtubules lengthens, allowing the chromosomes' centromeres to separate.

Therefore, the answer is anaphase.

P. S. centromeres separates, not split.
7 0
3 years ago
which classification groups have linear chromosomeswhich classification groups have linear chromosomes
aleksklad [387]

Until recently, prokaryotes did not contain linear plasmids or chromosomes, but they have since been discovered in spirochaetes, Gram-positive bacteria, and Gram-negative bacteria. Bacterial linear DNA has been classified into two structural kinds. Each end of linear plasmids from the spirochaete Borrelia has a covalently closed hairpin loop, while each end of linear plasmids from the Gram-positive filamentous Streptomyces has a covalently connected protein. In eukaryotic cells, replicons with comparable structures are more common than in prokaryotes. However, linear genomic architectures are likely more widespread in bacteria than previously thought, and some replicons may be able to switch between circular and linear isomers. The molecular biology of these widely scattered pieces reveals information about the origins of linear DNA in bacteria, including evidence of prokaryote-eukaryotes genetic exchange.

4 0
2 years ago
g Large, complex aquatic organisms and all terrestrial ones Group of answer choices are ureotelic. or ammonotelic. evolved speci
Hitman42 [59]

Answer:

evolved specialized tubules lined with transport epithelia

Explanation:

The epithelium is a basic tissue that forms a continuous, protective layer of cells. Moreover, transport epithelia are specialized types of epithelium that are involved in the absorption of ions and water from one side to the other of the epithelium, which are responsible for the movement of solutes both in osmoregulation and excretion. During the evolution of excretory organs, higher animals developed specialized tubules associated with transport epithelia whose function is to excrete waste products and selectively retain (filter) nutrients.

8 0
3 years ago
People are especially good at quickly detecting facial expressions of what
vodomira [7]

Answer: Anger

Explanation: People are especially good at quickly detecting facial expressions of anger. In a crowd of faces, a single angry face will “pop out”.

3 0
3 years ago
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