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givi [52]
2 years ago
6

Which relative level of enzyme activity is required on the leading and lagging strands during dna replication?

Social Studies
1 answer:
ivanzaharov [21]2 years ago
4 0

In order to start DNA polymerase from scratch, the primase produces brief strands of RNA that attach to single-stranded DNA. Since the leading strand can only be replicated continuously in the 5' to 3' direction, this enzyme does not operate in any other orientation. Short Okazaki fragments are produced and subsequently joined together during lagging-strand replication.

DNA copies itself through a semi-conservative process known as DNA replication. The S Phase (synthesis phase) of the cell cycle is when DNA replication takes place. To guarantee that both dividing cells have a copy of the DNA in their nuclei, DNA replication must take place before a cell splits. DNA replication enzymes support the replication process. Two DNA strands comprise each DNA molecule. DNA has a double helix form, which resembles a twisted ladder. Replication of DNA occurs in a semi-conservative manner. Each daughter strand created when DNA is duplicated contains (conserves) one of its parent strands.

DNA helicase, RNA primase, DNA polymerase, and DNA ligase are the enzymes that are involved in DNA replication in that sequence. DNA helicase, an enzyme, assists in the double helix's unraveling during the replication process. A signal is subsequently sent to the enzyme DNA polymerase by RNA primase, which then creates an RNA primer on the parent strand. To create two new daughter strands of DNA, DNA polymerase then adds complimentary nucleotides to the parent strand. DNA ligase binds the Okazaki fragments together to create a new daughter strand of DNA once all bases have been paired with their partners (adenine with thymine and guanine with cytosine).

Learn more about DNA replication here

brainly.com/question/2501600

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Describe the most important things to consider when answering your exam session​
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Answer:

For many test takers, preparing for a test and taking a test can easily cause worry and anxiety. In fact, most students report that they are more stressed by tests and schoolwork than by anything else in their lives, according to the American Test Anxiety Association. Most of us have experienced this. It is normal to feel stress before an exam, and in fact, that may be a good thing. Stress motivates you to study and review, generates adrenaline to help sharpen your reflexes and focus while taking the exam, and may even help you remember some of the material you need.But suffering too many stress symptoms or suffering any of them severely will impede your ability to show what you have learned. Test anxiety is a psychological condition in which a person feels distressed before, during, or after a test or exam to the point where stress causes poor performance. Anxiety during a test interferes with your ability to recall knowledge from memory as well as your ability to use higher-level thinking skills effectively.

Roughly 16–20 percent of students have high test anxiety.

Another 18 percent have moderately high test anxiety.

Test anxiety is the most common academic impairment in grade school, high school, and college.

Below are some effects of moderate anxiety:

Being distracted during a test

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Poor test performance is also a significant outcome of test anxiety. Test-anxious students tend to have lower study skills and lower test-taking skills, but research also suggests that high levels of emotional distress correlate with reduced academic performance overall. Highly test-anxious students score about 12 percentile points below their low-anxiety peers. Students with test anxiety also have higher overall dropout rates. And test anxiety can negatively affect a student’s social, emotional, and behavioral development, as well feelings about themselves and school.

Why does test anxiety occur? Inferior performance arises not because of intellectual problems or poor academic preparation. It occurs because testing situations create a sense of threat for those who experience test anxiety. The sense of threat then disrupts the learner’s attention and memory.

Other factors can influence test anxiety, too. Students with disabilities and students in gifted education classes tend to experience high rates of test anxiety.

If you experience test anxiety, have hope! Experiencing test anxiety doesn’t mean that there’s something wrong with you or that you aren’t capable of performing well in college. The trick is to keep stress and anxiety at a level where it can help you do your best rather than get in your way.

Extra Tip:

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