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Gre4nikov [31]
3 years ago
11

While examining a specimen under the microscope, Janet discovers a structure that has some genetic material that has RNA but not

DNA. What is the specimen?
Biology
2 answers:
rodikova [14]3 years ago
4 0

Answer:

Janet is watching an RNA virus.

Explanation:

Viruses are microorganisms classified according to their DNA or RNA nucleic acids. They are formed by a protein capsule, the capsids and, inside this, there is only DNA or RNA. Accordingly, we can say that Janet is observing an RNA virus under the microscope.

Some viruses are called enveloped because they have the capsid formed by a lipid membrane resulting from the invaded cell plasma membrane.  The capsule is also responsible for the specificity of the virus to adhere to certain cells, this is only possible because they have membrane proteins (receptors) that can fit into their proteins.

Archy [21]3 years ago
3 0

Answer:

The correct answer will be virus.

Explanation:

The virus is the infectious agents which cannot replicate themselves. these viruses contain a protein capsid surrounding the genetic material.

The genetic material in the virus could be DNA or RNA but do not have both as single-stranded or double-stranded forms.  

A virus with RNA are common in nature and an only a limited amount of RNA or DNA can fit a capsid and the capsid along with genetic material is known as the nucleocapsid.  

Since the specimens show RNA but not DNA it is a virus-like Ebola, polio, measles, therefore, the specimen is virus and is the correct answer.

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The length of linker DNA segments varies somewhat among organisms. The length of the linker DNA in sea urchin is 110 base pairs.
nasty-shy [4]

Answer:

362 nucleosomes

Explanation:

A nucleosome repeat is made up of the DNA (146 bp) wrapped around the core nucleosome particle and the linker DNA (110 bp as in this situation). We can conclude that, every repeat stands for 256 (146 + 110) base pairs of DNA.

We are given the length of the entire region to be 92,672 bp long,

To determine the number of nucleosomes to organize the region into the 10nm fiber structure

Let,

Number of nucleosomes =

the length of the entire region

------------------- -----

base pairs of DNA.

= 92,672

-------

256

= 362 nucleosomes

Therefore, 362 nucleosomes is needed to structure the region into the 10nm fiber structure.

5 0
3 years ago
Please help, any unnecessary answers will be reported. Thanks :)
Pachacha [2.7K]

Answer:

Digestive

Explanation:

The by-products of digestion are solid waste which is removed through egestion.

7 0
3 years ago
PLEASE HELP!!! Which of the following is created when the sun pushes the ionized gases of a comet away from the central core?
Strike441 [17]
The correct answer is C. Plasma Tail.
3 0
3 years ago
Read 2 more answers
If the population of Shanghai increases to 30 billion people, how much land would its people need if the population density is 3
nadezda [96]

784109 People per sq. mi land would its people need if the population density is 3,826 people/km2.

<h3>What is population density?</h3>

The density of individuals within a species in a given geographic location is referred to as population density. Data on population density can be used to calculate demographics and examine interactions with ecosystems, human health, and infrastructure.

The population density equation below can be used to calculate the population density of a piece of land:

        Population Density = Population/ Area

The residential density is important in determining the people's thinking and culture. Engineers find it vital to forecast population growth in order to develop infrastructure that can support a large population. It is practically impossible to develop a perfect 3D model of any structure that allows the largest number of people to live without this understanding.

For more information regarding population density, visit:

brainly.com/question/109266

#SPJ1

7 0
2 years ago
With the valve between the collecting duct and the urinary bladder closed and with the pressure increased, _______.
UkoKoshka [18]
Ureters is the correct answer :)
6 0
3 years ago
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