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Novay_Z [31]
4 years ago
12

How do mutations occur in the genetic code?

Biology
2 answers:
Inessa [10]4 years ago
6 0
Acquired mutations occur at some time during a person's life and are present only in certain cells, not in every cell in the body. These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division. Hope this helps ;)
EastWind [94]4 years ago
5 0

Answer:

Acquired (or somatic) mutations occur at some time during a person's life and are present only in certain cells, not in every cell in the body. These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division.

  • <u>explanation</u>

<u>In biology, a mutation is an alteration in the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA.[1] Mutations result from errors during DNA replication, mitosis, and meiosis or other types of damage to DNA (such as pyrimidine dimers that may be caused by exposure to radiation or carcinogens), which then may undergo error-prone repair (especially microhomology-mediated end joining[2]) or cause an error during other forms of repair[3][4] or else may cause an error during replication (translesion synthesis). Mutations may also result from insertion or deletion of segments of DNA due to mobile genetic elements.</u>

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Explanation:

8 0
2 years ago
The bones that form the prominences of the cheeks as well as part of the lateral wall and floor of each orbit are the?
jasenka [17]

The bones that form the prominences of the cheeks as well as part of the lateral wall and floor of each orbit are the Zygomatic bones.

The zygomatic bone is proportionately small but structurally important. It is almost quadrangular in shape and it is characterized by three surfaces, five borders and two processes.

It conveys the pressure exerted on the zygomatic region towards three otherwise unconnected bones i.e. the maxilla, the frontal as well as the temporal bone.

The zygomatic bones also possess the system of canals for the branches of the zygomatic nerve. The zygomatic bone extends backward to join the zygomatic process of the temporal bone, making the zygomatic arch.

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4 0
2 years ago
Evidence of glacial action can be observed all over the park. Which of these are way
Maru [420]

Abrasion, plucking, deposition, and physical weathering are the glacial actions which can be observed all over the park.

Explanation:

When the huge ice masses slope down to fall over the land surface during a glacier, many glacial actions or processes take place which defines the landforms formed on the surface. These actions include abrasion, plucking, deposition, and physical weathering.  

Abrasion is an erosive process which scrapes the surface of ice rocks and other frozen rocky material beneath the ice and causes striations over the rocks.

Plucking also an erosive process plucks the frozen rocks beneath the ice surface.

Physical or freeze-thaw weathering causes water to enter the cracks in the rocks when the temperature increases. This water enters inside and freezes inside when the temperature goes down. This repeated melting and freezing of water destabilizes the rocks and will break the rocks.

These materials which are worn off are transported and deposition on the land surface when the glacier settle down.  

Longshore drifts occur along coastlines and brings materials along the coast when waves move at an angle with the coastline.

4 0
3 years ago
An independent variable is the item that was changed in the experiment. What is the independent variable in this experiment? ​
KATRIN_1 [288]

Answer:

The independent (or manipulated)variable is something that the experimenter purposely changes or varies over the course of the investigation. The dependent (or responding) variable is the one that is observed and likely changes in response to the independent variable.

Explanation:

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5 0
4 years ago
You have a ruler that is marked to the nearest half centimeter. Which of these measurements is written with the correct amount o
Mariana [72]

A. It acknowledges the correct amount of decimal points and could be a reasonable measurement.

B is incorrect because we don’t have measurements down to the hundredth place on the ruler.

C is incorrect because it doesn’t acknowledge the amount of decimal places available, only stating it as a whole number.

D is incorrect for the same reason as C.

8 0
3 years ago
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