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worty [1.4K]
3 years ago
7

How would you find the mass of a certain amount of water that you poured jnto a paper cup

Biology
1 answer:
Mekhanik [1.2K]3 years ago
5 0
Infiltration method can be used to know the mass of a certain amount of water
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Which of the following is NOT the result of a mutation in the DNA sequence of an organism?
Mama L [17]

DNA is copied during mitosis and when the two resulting copies of DNA are compared they are found to contain the same order of nucleotides is not the result of mutation in the DNA sequence of an organism.

Explanation:

Mutation is the process

It is caused by certain chemicals called mutagens or by environmental factors.

In mutation the nucleotide get change which eventually changes the protein product.

In  mutation purine base gets mutated to purine base and pyrimidine base gets mutated to pyrimidine only.

A single change in nucleotide is called point mutation and the effect occurring because of it is called frame shift mutations.

In S phase there are checkpoints which ensure that DNA replication is accurate and when mitosis follows it equal distribution of DNA takes place between the two daughter cells hence no mutation will takes place.

6 0
3 years ago
The A159E mutation causes an A amino acid to be replaced with an E amino acid (their structures are shown here). What type of mu
valentinak56 [21]

Answer:

Substitution

Explanation:

Mutations can simply be defined as change in the structure of a gene. Mutation can be of different types. These include, but not limited to:

  • Insertion: This involves the insertion of extra base pairs into a DNA
  • Deletion: Loss of DNA section
  • Substitution: When a nucleotide base gets substituted with another base.

<em>Substitution of a base can lead to coding of different amino acid and hence, protein. It can also lead to coding of the same amino acid, otherwise known as silent mutation. Base substitution can also lead to the amino-acid-coding codon becoming a stop codon, leading to an incomplete protein.</em>

The correct answer is substitution.

5 0
3 years ago
The first stage of alzheimer disease is characterized by:
dmitriy555 [2]

In the first stages of Alzheimer’s disease, the patient affected may experience symptoms, such as memory loss of certain events. As the time passes, the patient may experience long-term memory loses, the patient may also revert into being a child. Patients who has been diagnose with Alzheimer’s Disease are commonly diagnosis with pneumonia, which may lead to their death. 

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3 years ago
Is it accurate to define homeostasis as a constant internal environment
kykrilka [37]
No quite.... Homeostasis is the maintenance of constant internal environment 
For example the constant internal temperature of our body is 37 degrees Celsius or 98.6 degrees Fahrenheit. If our body increases or decreases some changes happens to your body in order to return the normal body temperature. If your freezing your blood vessels near the skin constricts so that the heat running through your blood doesnt leave your body because you are in need of heat.

4 0
3 years ago
How many covalent bonds would you expect a neutral carbon atom to form in an organic compound?
hoa [83]
The number of covalent bond an element can form depends on the number of electrons it has in its outermost shell (valence electrons). Carbon has four valence electrons, therefore, it can form maximum of four covalent bonds in an organic compound.
3 0
2 years ago
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