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Friedrich Meischer made the discovery that blood cells contain nucleic acids. Which of the following statements about the BRCA1 and BRCA2 genes is correct? It is possible to check individuals for mutations on these genes.
Who was it that first identified the nucleic acid monomers?
Phoebus Levene, a Russian biologist, was the first person to discover the nucleotide, and he was also the first person to correctly determine the method that nucleic acid molecules, DNA…
Who and where made the initial discovery of nucleic acids?
Friedrich Miescher made the discovery of nuclein in the year 1869 while working at the University of Tübingen in Germany. In the early 1880s, Albrecht Kossel found the highly acidic qualities of the material after further purifying it in the previous decade. In subsequent years, he was also responsible for determining the nucleobases.
What makes each amino acid distinct quizlet?
What makes each amino acid unique? The R-groups are distinct from one another. How do distinct amino acids bond? They joined together by means of a peptide bond.
Which of the following characteristics gives each amino acid its own identity?
The side groups are what distinguish one amino acid from another. There are 20 distinct amino acids. There are twenty different types of side groups that are employed in the creation of proteins, but the two primary types are polar and non-polar. These designations pertain to the manner in which the side groups, which are also referred to as “R” groups at times, interact with their surroundings.
Nucleic Acids Structure & Function -DNA & RNA
43 questions found in related categories
Why is it that every amino acid is different?
A side chain, also known as an R group, is connected to the -carbon of amino acids. This is in addition to the carboxyl and amino groups. The size, shape, solubility, and ionization properties of the R group of each amino acid give rise to the unique traits that distinguish one amino acid from another.
Which component of amino acid is one of a kind?
Explanation: There is a particular component of the structure of an amino acid that serves as the defining characteristic of that acid. It is referred to as the R component. With the exception of this one component, all amino acids are the same.
What makes the amino acid structure unique?
A side chain, also known as an R group, is connected to the -carbon of amino acids. This is in addition to the carboxyl and amino groups. The size, shape, solubility, and ionization properties of the R group of each amino acid give rise to the unique traits that distinguish one amino acid from another.
Which three components are shared by each and every amino acid?
There is always a caboxylic acid, an amino group, and a hydrogen present in every amino group.
The number of amino acids that can be found in living creatures appears on the quiz.
There are a total of twenty distinct amino acids that can be found in most organisms.
What are the four different kinds of nucleic acids?
It was believed that naturally occurring nucleic acid polymers (DNA and RNA) contained only four classical nucleosides (ribo-or deoxy-derivatives) between the years 1920 and 1945. These nucleosides were adenosine, cytosine, guanosine, and either uridine or thymidine.
What does the initials DNA stand for?
The answer is deoxyribonucleic acid, which is a big molecule of nucleic acid that can be found in the nuclei of live cells, most frequently in the chromosomes. DNA is responsible for regulating cellular processes such as the creation of protein molecules, and it also stores the blueprint necessary for the reproduction of all of the hereditary features that are unique to a given species.
What are 3 nucleic acids examples?
- deoxyribonucleic acid (DNA)
- ribonucleic acid
- messenger RNA
- transfer RNA
- ribosomal RNA
What are the three most important roles that nucleic acids play?
The functions of nucleic acids in cells include the generation, encoding, and storage of biological information, as well as the transmission and expression of that information both within and outside of the nucleus.
What role does it play within the larger system of nucleic acids?
The significant class of macromolecules known as nucleic acids can be present in all living cells as well as in viruses. The storing of genetic information and the expression of that information are two of the roles that nucleic acids play in the cell. DNA is responsible for encoding all of the information that a cell requires in order to synthesize proteins.
What is it that each of the 20 different amino acids has in common?
Proteins are made up of 20 different amino acids, all of which have the same fundamental structure; the only thing that differentiates them is the R-group or side chain that they possess. Glycine, which has a hydrogen as its R-group constituent, is the simplest and tiniest of all the amino acids.
What is the total number of amino acids that can be discovered in nature?
There are around 500 different amino acids present in nature, yet the proteins that are found in the human body are only made up of 20 different amino acids.
Which of these two categories best describes the nucleic acids?
DNA, which stands for deoxyribonucleic acid, and ribonucleic acid, which stands for ribonucleic acid, are the two primary types of nucleic acids. DNA is the genetic material found in all free-living creatures as well as the majority of viruses. It is also known as the “master blueprint” for life.
What kinds of food are rich in each of the nine essential amino acids?
Because they include all 9 of the body’s necessary amino acids, complete protein sources include things like fish, meat, poultry, eggs, and dairy products. Because it includes all 9 essential amino acids, soy, in the form of tofu or soy milk, is one of the most common plant-based sources of protein.
What are the essential amino acids in the human body?
There are three amino acids that contain side chains that are basic even when the pH is neutral. The abbreviations for these three amino acids are arginine (Arg), lysine (Lys), and histidine. Its side chains are composed of nitrogen, and they are similar to the basic compound ammonia… Both aspartic acid and aspartate (Asp) are included here, as well as glutamic acid and glutamate.
What exactly is an amino acid, and how are they categorized?
On the basis of the characteristics of the “R” group found in each amino acid, amino acids can be categorized into one of four overarching groupings. Polar, nonpolar, positively charged, or negatively charged amino acids are all possible states for amino acids…. Hydrophobicity is exhibited by the nonpolar amino acids, whereas hydrophilicity is characteristic of the remaining groups.
Which amino acids are essential to the human body?
The body is unable to produce the essential amino acids on its own. As a consequence of this, they must have originated from food. Histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, and valine are the nine essential amino acids. Tryptophan, threonine, and valine round out the list.
What exactly is the structure of an amino acid?
An amino acid is a type of organic molecule that has a basic amino group (represented by NH2), an acidic carboxyl group (shown by COOH), and an organic R group (also known as a side chain) that is specific to each amino acid…. In most cases, a hydrogen (H) atom and an R group are required to satisfy the requirements of the remaining two bonds of the -carbon atom.