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BI319 Molecular Biology Assignment Example NUI Galway Ireland

BI319 Molecular Biology is designed for students who want to study the structure and function of genes at a molecular level. The course covers the following topics: DNA replication, transcription, translation, genetic regulation, and recombinant DNA technology. Students will learn how to use these techniques to investigate gene function and disease. In addition, the course will cover the ethical and social implications of molecular biology.

Best Assessment Answers for BI319 Molecular Biology assignment

In this course, there are many types of assignments given to students like group projects, individual assignments, continuous assessments, reports, business plans, business proposals, executive summaries, and other solutions given by us.

In this section, we are describing some assigned activities. These are:

Assignment Brief 1: Describe the eukaryotic cell cycle and DNA replication.

The eukaryotic cell cycle is the process by which cells divide and replicate their DNA. The cycle is divided into four phases: G1, S, G2, and M.

  • In the G1 phase, cells grow and prepare for replication.
  • In the S phase, DNA replication takes place.
  • In the G2 phase, cells check their DNA for mistakes and repair any that they find.
  • Finally, in the M phase, cells divide into two daughter cells.

DNA replication is the process by which DNA is copied from one strand to another. Replication begins at specific sites on the DNA called origins of replication. The DNA strands are separated by enzymes called helicases, and new strands are synthesized by enzymes called polymerases. DNA replication is a semi-conservative process, meaning that each new strand of DNA contains one old strand and one new strand.

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Assignment Brief 2: Explain cellular genomes and their organization.

Cellular genomes are the genomes of cells, which consist of all the DNA in a cell. The organization of a cellular genome can vary from species to species. In some organisms, the genome is organized into a series of chromosomes. Chromosomes are made up of long strands of DNA tightly coiled around proteins called histones. In other organisms, the genome is organized into a series of loops or rings.

The organization of a cellular genome can have a significant impact on gene expression. For example, genes that are located on the same chromosome are more likely to be expressed together than genes that are located on different chromosomes. This is because when a cell divides, the chromosomes are randomly divided into the two daughter cells. This means that each daughter cell has a copy of each chromosome. However, the genes on each chromosome are not always evenly divided between the daughter cells. This can lead to differences in gene expression between the two daughter cells.

Assignment Brief 3: Elucidate how gene expression is regulated.

There are a variety of mechanisms that cells use to regulate gene expression. One common mechanism is called transcriptional regulation. Transcriptional regulation is the process by which the activity of a gene is controlled by the binding of proteins to DNA. These proteins can either activate or repress the gene.

Another common mechanism is called post-transcriptional regulation. This is the process by which the activity of a gene is controlled by the modification of RNA after it is transcribed from DNA. These modifications can include adding or removing methyl groups, splicing the RNA, or changing the stability of the RNA.

Finally, another mechanism that can be used to regulate gene expression is called post-translational regulation. This is the process by which the activity of a gene is controlled by the modification of proteins after they are translated from RNA. These modifications can include adding or removing methyl groups, phosphorylation, or ubiquitination.

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Assignment Brief 4: Describe the nature and replication of viruses.

Viruses are small, infectious particles that can replicate inside living cells. They are made up of a genetic material (DNA or RNA) and a protein coat. Some viruses also have an envelope made of fat or proteins.

The genetic material of a virus can be either DNA or RNA. The type of genetic material determines the type of virus. DNA viruses are replication by copying the viral DNA into the cell’s own DNA. RNA viruses are replication by copying the viral RNA into the cell’s RNA.

Viruses can only replicate inside living cells. They use cellular machinery to make copies of themselves. This can damage the cells and can even kill them. 

Viruses can be spread through contact with infected bodily fluids, such as blood, saliva, or semen. They can also be spread through the air, or by coming into contact with surfaces that have been contaminated with the virus.

There are many different types of viruses, and they can cause a wide variety of diseases, from the common cold to Ebola.

Assignment Brief 5: Perform key techniques in molecular biology including polymerase chain reaction, plasmid preparation, restriction enzyme digest, and agarose gel electrophoresis.

The techniques of molecular biology allow us to manipulate genes and understand their function. Some of the most common techniques are polymerase chain reaction (PCR), plasmid preparation, restriction enzyme digest, and agarose gel electrophoresis.

  • The polymerase chain reaction is a technique that can be used to amplify a small piece of DNA. It works by using a pair of specially-designed primers to bind to the DNA fragment. These primers then act as a template for the DNA polymerase enzyme. The polymerase enzyme can then synthesize new DNA strands that are complementary to the original fragment. This process can be repeated many times, resulting in an amplified piece of DNA.
  • Plasmid preparation is a technique used to isolate pieces of DNA from bacterial cells. It involves treating the cells with a chemical that breaks down the cell wall. This releases the DNA from the cells, which can then be purified.
  • Restriction enzyme digest is a technique used to cut pieces of DNA into specific sizes. Restriction enzymes are enzymes that recognize and cut specific sequences of DNA. They are named for the particular sequence of DNA that they cut. For example, the restriction enzyme EcoRI cuts the sequence GAATTC.
  • Agarose gel electrophoresis is a technique used to separate pieces of DNA based on their size. The DNA is loaded into a gel made of agarose, a type of sugar molecule. The gel is then placed in an electric field. The DNA fragments will move through the gel at different rates, depending on their size. The smaller fragments will move more quickly than the larger fragments. This allows us to separate the DNA fragments by size.

These are just a few of the many techniques used in molecular biology. These techniques allow us to study genes and understand how they work.

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Assignment Brief 6: Demonstrate an ability to present and interpret scientific results.

When scientists conduct experiments, they often produce a lot of data. It can be difficult to make sense of all this data and to figure out what it means. This is where the skill of interpretation comes in. Scientists need to be able to take all the data from their experiments and interpret it in a way that makes sense.

Interpretation can be tricky because it is easy to make mistakes. For example, a scientist might see a pattern in their data that isn’t there. Or they might misinterpret the results of their experiment. This is why scientists need to be able to critically evaluate data and draw conclusions based on evidence.

There is a lot of scientific literature out there, and it can be difficult to know which papers to trust. Scientists need to be able to critically read papers and evaluate the evidence they present. They also need to be able to distinguish between good research and bad research.

Presenting scientific results is also an important skill. Scientists need to be able to present their data clearly and concisely. They also need to be able to answer questions from their audience.

Scientists need to be able to communicate their findings to the general public. Many people don’t understand science, and it is up to scientists to explain their research in a way that everyone can understand. 

These are just a few of the skills that are important for scientists. interpretation, presentation, and communication are all essential for conducting successful research.

Assignment Brief 7: Draw scientifically grounded conclusions from observations and explain these in writing.

After experimenting, scientists need to be able to conclude from their observations. This is not always easy, as experiments can often produce a lot of data. Scientists need to be able to analyze this data and to make sense of it. They also need to be sure that their conclusions are based on evidence.

When scientists conclude, they are making a statement about what they believe is happening in their experiment. This statement can be supported by data, or it can be based on intuition. Scientists need to be able to distinguish between the two.

The most important thing for scientists is to be able to explain their findings in writing. This allows other scientists to read their work and critique it. It also allows the general public to understand what they are doing.

Scientists need to be able to write clearly and concisely. They should also use technical terms sparingly so that everyone can understand their work.

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Assignment Brief 8: Describe the main units used and perform basic calculations in molecular biology.

Molecular biology is the study of genes and their role in cellular function. Genes are made up of DNA, and DNA is made up of smaller units called nucleotides. There are four types of nucleotides: adenine (A), thymine (T), guanine (G), and cytosine (C).

The main units used in molecular biology are DNA, RNA, and proteins. DNA is made up of nucleotides, RNA is made up of nucleotides and ribosomes, and proteins are made up of amino acids.

There are several calculations that scientists need to be able to do to work in molecular biology. These include:

  • Finding the melting temperature of a DNA strand
  • Calculating the molarity of a solution
  • Determining the number of nucleotides in a DNA or RNA strand
  • Calculating the molar mass of a protein

Molecular biologists need to be able to perform these calculations quickly and accurately.

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