Ap biology free response essay

Do you think this new and revised AP Bio test will be harder than the past tests?

Ap biology free response essay

Account for the differences in oxygen consumption observed between: Explain why each of these features is necessary. State the conclusions reached by Mendel in his work on the inheritance of characteristics.

Explain how each of the following deviates from these conclusions. Experiments by the following scientists provided critical information concerning DNA. Describe each classical experiment and indicate how it provided evidence for the chemical nature of the gene.

Explain how the events of meiosis I account for the observations that led Mendel to formulate these laws. An organism is heterozygous at two genetic loci on different chromosomes. Explain how these alleles are transmitted by the process of mitosis to daughter cells.

Explain how these alleles are distributed by the process of meiosis to gametes.

Productive Preparation

Labeled diagrams that are explained in your answer may be useful. A portion of specific DNA molecule consists of the following sequence of nucleotide triplets.

What would be the effect of a deletion or an addition in one of the DNA nucleotides? What would be the effects of a substitution in one of the nucleotides? Describe the operon hypothesis and discuss how it explains the control of messenger RNA production and the regulation of protein synthesis in bacterial cells.

Explain how DNA meets each of the three criteria stated above. Select one of the criteria stated above and describe experimental evidence used to determine that DNA is the hereditary material.

Describe the biochemical composition, structure, and replication of DNA.

Ap biology free response essay

Discuss how recombinant DNA techniques may be used to correct a point mutation. Describe the production and processing of a protein that will be exported from a eukaryotic cell.

Begin with the separation of the messenger RNA from the DNA template and end with the release of the protein at the plasma membrane. Describe the steps of protein synthesis, beginning with the attachment of a messenger RNA molecule to the small subunit of a ribosome and ending generalized with the release of the polypeptide from the ribosome.

Include in your answer a discussion of how the different types of RNA function in this process. The diagram below shows a segment of DNA with a total length of 4, base pairs. The arrows indicate reaction sites for two restriction enzymes enzyme X and enzyme Y.

Explain how the principles of gel electrophoresis allow for the separation of DNA fragments. Describe the results you would expect from the electrophoresis separation of fragments from the following treatments of the DNA segment above. Assume that the digestions occurred under appropriate conditions and went to completion.The two main molecular methods to identify microbes are by the comparison of 1) DNA and RNA sequences (nucleic acid hybridization) and 2) of amino acid sequences of a protein or proteins (amino acid sequences).

AP Biology Strategies for Answering Free Response. Use your time effectively. You have 90 minutes to complete Section 2, which contains four free response essay questions. Answering free response questions (FRQ) for the AP Bio exam is very different from the standard Wilton 5-paragraph essay!

Think of them more along the lines of related short-answer questions. There are usually 4 FRQ on the AP Bio exam essay portion and each one has multiple parts.

AP biology: Contact Mrs. Carignan --> Home (activate B cells and recognize foreign antigens *an antigen is a foreign molecule that causes immune system response* on the surface of phagocytic cell which then they bind and produce more T cells which sends out signals for B cells to come in and "finish the job" and cytotoxic T cells (involved.

Nov 14,  · AP Biology Essay Questions: The following is a comprehensive list of essay questions that have been asked on past AP exams.

AP Biology: The Exam | AP Central – The College Board

Living organisms play an important role in the recycling of many elements within an ecosystem. On the AP Biology Exam this May, you will have 90 minutes to complete the free-response section that represents 40% of your score. There are four questions in the free-response section.

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