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worty [1.4K]
3 years ago
12

A gene mutation is a change in the sequence of nucleotides that occurs during cell replication (mitosis and meiosis) within a si

ngle coding section of DNA. Mistakes can also occur in the transcription of mRNA or the translation of a polypeptide. However, these changes are not considered to be mutations, because they are not permanent changes to the cell. Explain why "mistakes" in transcription or translation are not as serious as mutations in a gene.
Biology
1 answer:
LiRa [457]3 years ago
8 0

Answer:

The cell has an elaborate mechanism in place that check for and correct the mistakes that happen during replication, transcription or translation. This process is called as proofreading. The incorrect nucleotide added during replication cause the replication to be halted for a while. The DNA polymerase enzyme fixes the error and replication then resumes as normal.

Gene mutation, on the other hand, is a permanent change in the DNA sequence that might lead to cancer.

Hope that answers the question, have a great day!

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Burka [1]

<u>Answer:</u>

Heat moves from the land to the air through the process of "conduction".

<u>Explanation:</u>

When the two things come in contact with one another at different temperatures or basically when heat flows from the warmer to the colder region or phase until both reach at the same temperature is understood as "conduction". Conduction is a physical process which occur by collision of the microscopically colliding particles like molecules, atoms and electrons on the movement of heat through a substance.

While convection take place by the movement of heated objects and it isn't the process influencing air and water temperature difference. The examples of conduction are like a radiator, a heating pad, sand can conduct heat etc.

4 0
3 years ago
Read 2 more answers
Using concepts of Mendelian genetics and natural selection explain the increase in the phenotype frequency for black fur from th
jasenka [17]

Answer:

Black fur is more fit to survive in the environment than other colors of fur.

Explanation:

"Fitness", in terms of natural selection, is an organism's likelihood to survive in a given environment. Assuming that the increase in black fur is significant (Not attributable to pure chance), we can safely assume this is because Black Fur provides a competitive advantage in said environment over other colors of fur. There may be black terrain that allows them to blend into the environment and ovoid predators, or maybe it keeps them warmer if it is located in a cold region, thereby reducing the amount of resources they need to spend to stay warm.

4 0
3 years ago
Organisms that swim freely and maneuver actively in the water column are called what?
ohaa [14]

Answer:

Zooplankton - Animals (mostly microscopic) which drift freely in the water column.

Explanation: Zooplankton, small floating or weakly swimming organisms that drift with water currents and, with phytoplankton, make up the planktonic food supply upon which almost all oceanic organisms are ultimately dependent.

Hope this helped!!

4 0
3 years ago
Name:<br><br>Country:<br><br>what did the invent,creat or discover:​
Westkost [7]

Answer:

John Biggins

Explanation:

5 0
3 years ago
Read 2 more answers
Placing a catheter into the aorta or directly into an artery or vein is called
Iteru [2.4K]
Nonselective catheter placement

 This can also be placed only into the aorta from any approach. Catheter placed into the arterial vessel and not manipulated to another arterial site. This also refers to the catheter that remains in the accessed vessel or that has made it into the aorta. In contrast to the selective catheter placement which is placed into a branch off the aorta or access the vessel. Each vessel arise from the aorta represents different vascularities.
4 0
3 years ago
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