How do you write an AP Biology essay?
- The first thing that you should do is carefully read the question.
- Take a minute to outline/plan your answer to avoid confusion and disorganization.
- Write an essay: use complete thoughts and sentences.
- Define your terms.
- Answer the question parts in the order asked for by the question.
What type of virus deviates from the central dogma?
retrovirus
A point was earned in part (c) by selection of the “retrovirus (like HIV)” as an example of a virus that deviates from the central dogma. A deviation point was also earned by explaining that “instead of creating proteins from DNA, it uses its host cell to create DNA from the virus’s own RNA.”
What are two environmental factors that increase the mutation rate in an organism?
Environmental factors that increase the rate of mutations include conditions where you live, travel and work.
What is protein synthesis and why is it important?
Protein biosynthesis (or protein synthesis) is a core biological process, occurring inside cells, balancing the loss of cellular proteins (via degradation or export) through the production of new proteins. Proteins perform a number of critical functions as enzymes, structural proteins or hormones.
What is the purpose of protein synthesis?
The purpose of protein synthesis is simply to create a polypeptide — a protein made out of a chain of amino acids. In a hair follicle cell, a protein called keratin is made. Lots of it. Many ribosomes can be working on a single strand of mRNA at once.
How many FRQS are in AP Bio?
The AP® Biology exam has 60 multiple choice questions and 6 free-response questions. Of the 6 free-response questions, 4 are short-answer questions while the other 2 are long-answer questions.
How many points is the AP Bio frq?
Each of the four short-answer questions is scored out of 4 points, and each long free-response question is scored from 8 to 10 points….How Is the AP Biology Exam Scored?
| Raw Score | AP Score | % of Test Takers Earning Score (2020) |
|---|---|---|
| 0-30 | 1 | 6.9% |
How does protein synthesis work?
Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. It includes three steps: initiation, elongation, and termination.
What is the role of repressor proteins in protein synthesis?
gene regulation small protein molecule called a repressor. The repressor binds to the operator gene and prevents it from initiating the synthesis of the protein called for by the operon. The presence or absence of certain repressor molecules determines whether the operon is off or on.
How do mutations in DNA affect protein synthesis?
Sometimes, gene variants (also known as mutations) prevent one or more proteins from working properly. By changing a gene’s instructions for making a protein, a variant can cause a protein to malfunction or to not be produced at all.