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Anvisha [2.4K]
3 years ago
9

During dna replication, two extra guanine bases are added to the dna. what type of mutation is this?

Biology
2 answers:
Veronika [31]3 years ago
7 0
C. frameshift mutation
AVprozaik [17]3 years ago
7 0

Answer:

(c). frameshift mutation.

Explanation:

Mutations are permanent changes in the DNA due to changes in nucleotide sequences. Mutations that cause addition of extra nucleotides in a nucleotide sequences are known as frameshift mutations.

This is because they lead to change in open-reading frames or translational reading frames and change the entire amino acid sequence coded by rest of the gene.

Thus, the correct answer is option (c).

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Scientists describe a period called the Great Acceleration, in which human activities began significantly altering global system
victus00 [196]

<u>Answer:</u>

The invention of agriculture, advances in medical technology that have greatly reduced the human death rate and he rapid increase in the uses of fossil fuels, fertilizers, metal ores, and other resources.

Option: (A), (C) and (D)

<u>Explanation:</u>

  • The Great Acceleration refers to the humanity’s impact upon the Earth’s geology and its ecosystems caused by continual and surge in growth of human activity.
  • It was first recorded in mid-20th century and is continuing to this day. The 'invention of agriculture', advancement in medical technology which reduced the death rate, rapid increase in use of 'fossil fuels', 'fertilizers' and other resources contributed to global changes.
  • Agriculture allowed us to produce more food and population increased rapidly.
  • Fossil fuels created a surge in production of Green House Gases and global temperature began to rise.
4 0
3 years ago
What is the double helix?
WARRIOR [948]
A pair of parallel helices intertwined about a common axis, especially that in the structure of the DNA molecule.

that is the definition^
4 0
3 years ago
Concentration of sodium (Na ) outside of the cell is lower than it is inside the cell. However, the cell utilizes a membrane pro
solong [7]

Answer:

True, by active transport

Explanation:

The influx and efflux of molecules through the cell membrane depend on the concentration gradient.

When the molecules down their concentration gradient that is from higher concentration to lower concentration are known as passive transport but sometimes the cell has to transport the ions against the concentration gradient.

When the ions move against the concentration gradient, they use energy in the form of ATP molecules and then transport the ions. This is known as active transport.

In the given question, since the sodium ions move inside the cell against the concentration gradient by the active transport.

5 0
3 years ago
Important functions of these biomolecules include muscle development, acting in the immune system, and acting as enzymes.
Sindrei [870]

Proteins help in the development of muscle, acts in the immune system and also as enzymes. They are considered as a <span>class of nitrogenous organic compounds that are comprise of large molecules which contains one or more long chains of amino acids and are a vital portion of all active organisms.</span>

3 0
4 years ago
When an organism excretes waste, can a plant directly use it as fertilizer (nitrogen source)? Why or why not?
Ivahew [28]
<h3>Yes</h3>

Because the organism waste contains UREA and urea is rich in nitrogen and it can be used as fertilizer for plants. Bc plants need nitrogen.

5 0
2 years ago
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