⚠️⚠️⚠️⚠️ Identify the correct statement about the diagrams about ⚠️⚠️⚠️⚠️

PLEASE HELP WILL GIVE BRAINLIEST TO CORRECT ANSWER

Ymorist [56]

I say B it makes the most sense

3 0

3 years ago

One mechanism by which viruses may cause cancer is to interrupt the genetic regulatory sequences of repressor proteins. Which of

Bumek [7]

Answer: D) retroviruses

Explanation:

Retroviruses are a type of virus that converts its genetic material into DNA using a special enzyme, called reverse transcriptase. The DNA is then able to integrate into the DNA of the host cell. Once integrated, the virus can make additional viral particles using the components of the host cell.

Retroviruses which cause cancer at low incidence do not contain host information inserted. Rather, they tend to cause cancer via the expression mutation of potentially oncogenic host genes. Retroviruses incorporate proviral DNA into their host's chromosomal DNA during their natural life-cycle. Provirus DNA promoter affect regulatory gene expression over.

Hence, the correct option is D.

3 0

3 years ago

Imagine a species of butterfly that comes in a variety of colors how can this type of diversity affect the population

VMariaS [17]

It can potentially wipe out the population of a certain colour of butterfly.

7 0

4 years ago

Read 2 more answers

How do neurons work?

kenny6666 [7]

A neuron (also known as nerve cell) is an electrically excitable cell that takes up, processes and transmits information through electrical and chemical signals. It is one of the basic elements of the nervous system. In order that a human being can react to his environment, neurons transport stimuli.

4 0

3 years ago

describe how the properties of the original wave may change as it is transmitted through a new medium?

galina1969 [7]

Answer:

Note: the question is incomplete and does not mention what type of wave we are talking about; I will assume that we are talking about a light wave.

When a light wave is transmitted through a new medium, it undergoes a phenomenon called refraction: the direction of the wave as it enters the new medium changes, according to Snell's law

$n_1 sin \theta_1 = n_2 sin \theta_2$

where:

$n_1, n_2$ are the index of refraction of the two mediums

$\theta_1, \theta_2$ are the angle of incidence and angle of refraction, which are the angle between the incoming ray and the normal to the boudary, and the angle between the refracted ray and the normal to the boundary

The index of refraction of a medium is defined as:

$n=\frac{c}{v}$ (1)

where

c is the speed of light in a vacuum

v is the speed of light in the medium

From eq.(1), it follows that the speed of a light wave changes as it is transmitted through a new medium (in particular, it increases if the wave moves to a new medium with lower refractive index, and it decreases if the wave moves to a new medium with higher refractive index).

On the other hand, the frequency of a wave does not depend on the medium: so, as the wave is transmitted through a new medium, its frequency does not change.

Finally, we can see what happens to the wavelength by looking at the equation:

$\lambda=\frac{v}{f}$

where $\lambda$ is the wavelength, v the speed and f the frequency. As the frequency does not change, we can see that the wavelength changes proportionally to the speed: so, it increases if the speed increases, and it decreases if the speed decreases.

3 0

4 years ago