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olasank [31]
2 years ago
15

If there is no family history of a particular disease but a child has the disease as well as the responsible genetic mutation in

every cell, then it may have arisen due to a(n) ________ mutation early during development.
Biology
1 answer:
madreJ [45]2 years ago
3 0

Given what we know about genetics, we can confirm that the case described in the question will be a result of a De Novo mutation.

A De Novo mutation is referred to as the most severe mutation type. This is a mutation that occurs even before embryonic development has commenced. They are usually the result of mutations in the DNA of the germ cells before being fertilized.

These mutations are responsible for a variety of disabilities and can target a wide array of genes to cause these effects.

To learn more visit:

brainly.com/question/1282397?referrer=searchResults

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Photosynthesis is the main method by which primary production takes place in an ecosystem. What abiotic factor is a beneficial b
iris [78.8K]

Oxygen is an abiotic factor that is beneficial by-product of primary production.

<u>Explanation:</u>

The non living parts of an ecosystem that mainly affects the living organisms in it are called as an abiotic factor. These can include soil, temperature, water, oxygen and sunlight. The major energy source in earth is Oxygen which is abiotic factor.

It is very essential for the photosynthesis process to take place. Here, the plants converts water and carbon dioxide into oxygen and sugar. This becomes food for plants. Then these plants are eaten by animals. Thus oxygen is an important and beneficial by-product of photosynthesis. Oxygen is also very important for the survival of human beings.

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3 years ago
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Low sample size can affect the results of a scientific experiment because it may not
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True true true true true true
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3 years ago
Help me ALL of these, and you get brainiest! (:
Evgen [1.6K]

Answer:

1. Circulatory System

2. Respiratory System

3. Endocrine System

4. Nervous System

5. Urinary/ Excretory System

Explanation:

1. Circulatory System- The heart pumps blood and blood vessels such as arteries and veins, transports the blood to every part of our body providing organs and muscles with nourishment.

2. Respiratory System- This system maintains our breathing. It supplies the body with oxygen for cellular respiration.

3. Endocrine System- The glands of the endocrine system secrete chemicals called hormones that regulate most of the processes in our bodies like growth, reproduction, metabolism, etc...

4. Nervous System- The entire nervous system controls all of the other systems of the body and it also transmits information to the brain, such as pain and external sensations.

5. Urinary/Excretory System- This system is responsible for eliminating waste products of metabolism and other materials from the body that are of no use.

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3 years ago
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Which of the following are stramenopiles?
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Brown algae and diatoms

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Estimate how much the brain would swell due to osmosis if the concentration of the cerebrospinal fluid fell to 280mM. In other w
AnnZ [28]

Answer:

The correct answer is 6.67 %.

Explanation:

The average osmotic pressure of the brain is 300 mM

Given the concentration of solution is 280 mM

Difference is 300 - 280 = 20 mM

This difference is sufficient to stimulate osmosis and make water move from CSF to the brain until the concentration becomes similar.  

Also, it is known that the volume of brain is about 1200 ml on an average,  

Volume of fluid moved because of osmosis = 20 mM / 300 mM * 1200 ml = 80 ml

Percent swelling of brain = 80 ml / 1200 ml * 100 = 6.67 %

6 0
3 years ago
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