The virus that causes mumps in humans is composed of a protein outer shell containing a core of DNA. The virus that causes the flu in humans is composed of a protein outer shell containing a core of RNA. Vaccines that are effective against mumps work efficiently year after year. Vaccines that work against the flu must be revised and changed every year. What accounts for the difference in the effectiveness of these two vaccines?

Answers

Answer 1

Answer: Flu vaccines need to be revised and changed every year because the flu virus constantly mutates. Flu viruses can change in two ways: drift or shift. Antigenic drift occurs when genes of the virus slowly change during replication until the immune system no longer recognizes it. On the other hand, antigenic shift occurs when a major change in the virus happens. This usually leads to a totally different kind of virus. This is what happened during the H1N1 scare in 2009.

DNA viruses like mumps are less prone to mutation due to the presence of DNA polymerase. RNA viruses are more prone to mutation because they undergo reverse transcription to simulate the role of DNA.

Answer 2

Answer:

Answer:

I agree with this person ^^

Explanation:

Related Questions

Which organism provides energy to all other organisms in this ecosystem? A. prairie dog B. prairie grass C. vulture D. coyote
On a global basis, which of the following is the largest reservoir of carbon?
How many chromosomes are contained in the nucleus of each cell in the human body?
A plant appears to grow away from the sunlight and the roots appear to grow deeply straight down into the ground. This plant is displaying which of the following?a.positive phototropism and positive gravitropism b.negative phototropism and positive gravitropism c.negative phototropism and negative gravitropism
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Aristo was riding in a car and noticed a pond that was covered in algal blooms. Which of these other features in the landscape could be the reason for the high levels of phosphorus?many cars
cow pasture
solar panels
forest

Answers

"Cow pasture" is the other feature in the landscape among the choices given in the question that could be the reason for the high levels of phosphorus. The correct option among all the options that are given in the question is the second option. I hope that this is the answer that has come to your help.

AnsweCOW PASTURE

Explanation:

Is anybody good at biology?1. Which of the following contain only prokaryotes? (Points: 1) Domains Archaea and Bacteria Domains Bacteria and Eukarya Domains Archaea and Eukarya only Domain Eukarya 2. Bacteria and archaeans have which of the following characteristics in common? (Points: 1) Both are...

Answers

1. Archaea and Bacteria
2. Both are Prokaryotic

The answer to the first question is "Domains Archaea and Bacteria"

Eukarya consists of eukaryotes.

The answer to the second question is "Both are Prokaryotic"

This is the same as the first question.

radio waves travel into space at the speed of light for 15 minutes. How far out in space did they travel in meters

Answers

To determine how far the radio waves traveled in space in meters, we can use the fact that radio waves travel at the speed of light.

The speed of light is approximately 299,792,458 meters per second.

Given that the radio waves traveled for 15 minutes, we need to convert minutes to seconds. There are 60 seconds in a minute.

So, the total time the radio waves traveled is 15 minutes x 60 seconds/minute = 900 seconds.

To find the distance traveled, we can multiply the speed of light by the time:

299,792,458 meters/second x 900 seconds = 269,813,212,200 meters.

Therefore, the radio waves traveled approximately 269,813,212,200 meters into space.

Which is the correct order of the levels of organization in plants and animals?

Answers

The correct order of levels of organization in both plants and animals is as follows: cells, tissues, organs, organ systems, and organisms.

What are the levels of organization?

At the cell level, basic structural and functional units exist. These cells form tissues, which are groups of similar cells with a shared function. Multiple tissue types come together to create organs, each serving a specific purpose.

Organs collaborate within organ systems, where groups of organs work together to perform complex functions. Finally, the culmination of these levels of organization results in the complete living entity, the organism. This hierarchical organization enables specialization and efficient functioning within the biological systems.

So, the order is: cells → tissues → organs → organ systems → organisms.

Read more about levels oforganization here: brainly.com/question/15383548

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Answer:

The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

Explanation:

Explain how the formation of Earth is an example of primary succession.

Answers

Answer:

Well in the beginning there was no fire soo nothing destroyed the earth

Any primary succession means occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited.

Hopes this answers ur question

BRAINLIEST PLZ

Explanation:

Nutrients supply the body with energy and maintenance materials. True Or Flase

Answers

It's true Food provides the body with the many materials it needs for energy, growth, repair, and reproduction. These materials are more known as nutrients.

Answer:

True

Explanation:

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As water vapor rises in the air. What i likely to cause?