Which of the following discoveries is ascribed to Phoebus Levene?
DNA extraction and examination Ribose and deoxyribose identity recognition of RNA as DNA’s messenger development of a realistic DNA model
Answers
On edgen, the answer is D.
Explanation:
The correct answer is B. (the second one, ribose and deoxyribose).
Phoebus Aaron Theodore Levene was a Lithuanian scientist who immigrated to America. Levene conducted considerable research on DNA and discovered that it comprises adenine, guanine, thymine, cytosine, deoxyribose, and phosphate group. In the Rockefeller Institute, he discovered ribose in 1909 and deoxyribose in 1929.
The correct answer is ribose and deoxyribose identification.
In 1900, Levene demonstrated that nuclein was present in all kinds of animal cells studied. Later, in 1909, while validating Albrecht Kossel’s tests, he demonstrated that nucleic acids were constituted of phosphoric acid, a pentose, and nitrogenous bases. Levene demonstrated that the pentose found in yeast nuclein was ribose, but it took until 1929 for him to find deoxyribose pentose separated from the animals’ thymus. This distinction led him to hypothesize that the nuclein of animals was deoxyribose nucleate, now known as “deoxyribonucleic acid” or DNA, while the nuclein of plants was ribose nucleate, ribonucleic acid, or RNA.
The answer is B, which stands for ribose and deoxyribose identification.
Answer choices:
DNA extraction and examination Ribose and deoxyribose identity recognition of RNA as DNA’s messenger development of a realistic DNA modelRibose and deoxyribose identity
Explanation:
Phoebus Levene was a scientist from the United States who explored the structure of DNA and RNA. He was able to separate the sugars (ribose and deoxyribose) from nucleic acids, which are an essential component of their structure.
He also discovered how nucleic acid components mix to make nucleotides, which are the fundamental building blocks of nucleic acids, and how nucleotides combine in chains to form the polymer.
B
Explanation:
Ribose and deoxyribose identity
The correct answer is A: ribose and deoxyribose identification. 25th of June, 2020
You might also be thinking, What discovery is attributed to Phoebus Levene?
Although Levene’s research covered practically every major class of chemical molecules, his work on nucleic acids was the most important. He extracted the nucleotides, the nucleic acid molecule’s fundamental building components, and the five-carbon sugar d-ribose from the ribonucleic acid (RNA) molecule in 1909. 21 February 2022
Similarly, What discovery is attributed to Phoebus Levene Brainly?
The correct answer is A: ribose and deoxyribose identification. Phoebus Aaron Theodore Levene is well-known for his research on nucleic acid structure and function. He divided nucleic acids into two types: DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) (ribonucleic acid). 25th of June, 2020
But then this question also arises, What did Phoebus Levene discover in 1919?
This material was formerly known as nuclein, but it was subsequently renamed nucleic acid. In 1919, Russian scientist Phoebus Levene postulated that nucleic acids were made up of phosphate, sugar, and four nitrogenous basesadenine (A), guanine (G), cytosine (C), and thymine (T) (T).
Where did Phoebus Levene discover DNA?
Levine, Phoebus Education
How did Levene discover DNA?
Although Levene’s research covered practically every major class of chemical molecules, his work on nucleic acids was the most important. He extracted the nucleotides, the nucleic acid molecule’s fundamental building components, and the five-carbon sugar d-ribose from the ribonucleic acid (RNA) molecule in 1909. 21 February 2022
Related Questions and Answers
Who discovered deoxyribose sugar?
Friedrich Miescher, a Swiss chemist, was the first to discover deoxyribose nucleic acid (DNA) in 1869. Nucleic acids are biopolymers made up of three types of nucleotide monomers: a five-carbon sugar, a phosphate group, and a nitrogenous base.
What is the simple sugar in DNA called?
deoxyribose
Who first identified DNA?
Friedrich Miescher, a chemist
What did chargaff discover?
The ratios of adenine (A) to thymine (T) and guanine (G) to cytosine (C) in DNA are equal, according to Erwin Chargaff. The final DNA structure reflects this balance.
Which discovery is attributed to Phobos?
The correct answer is A: ribose and deoxyribose identification. Phoebus Aaron Theodore Levene is well-known for his research on nucleic acid structure and function. He divided nucleic acids into two types: DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) (ribonucleic acid). 25th of June, 2020
What was DNA discovered?
Friedrich Miescher, a Swiss researcher, discovered DNA in 1869 while researching the makeup of lymphoid cells (white blood cells). Instead, he extracted a novel molecule from a cell nucleus that he named nuclein (DNA with related proteins). April 24, 2019
What did they discover about DNA?
It was created by Rosalind Franklin using an X-ray crystallography method to show the DNA molecule’s helical structure. Watson and Crick discovered that DNA is made up of two strands of nucleotide pairs that encode all living organisms’ genetic information.
When did Erwin Chargaff make his discovery?
In 1950, he observed that the quantities of adenine and thymine in DNA, as well as the amounts of cytosine and guanine, were about the same. This was thereafter referred to as Chargaff’s first rule.
How did Erwin Chargaff make his discovery?
Chargaff conducted a series of tests to evaluate the theory that DNA is a key component of the gene. He separated the nuclei from the cells. He then separated the DNA from the nucleus and separated the nucleic acids that made up the DNA.
Who did Phoebus Levene work with?
Levine, Phoebus Influences of Institutions
What did Erwin Chargaff contribution to DNA?
One of those guys was Erwin Chargaff, who made two key findings that allowed James Watson and Francis Crick to discover the double helix structure of DNA. Initially, Chargaff found that DNA from plants and animals included equal levels of adenine and thymine, as well as equivalent amounts of cytosine and guanine.
Where is deoxyribose found in DNA?
deoxyribose, also known as d-2-deoxyribose, is a five-carbon sugar found in DNA (q.v.; deoxyribonucleic acid), where it forms the “backbone” of the DNA polymer by alternating with phosphate groups and binding to nitrogenous bases. it’s been 7 days since
Who discovered the relative proportions of adenine thymine guanine and cytosine in DNA?
Erwin Chargaff, a chemist
Where is sugar located in DNA?
Deoxyribose, a 5-carbon sugar molecule, is present in DNA. DNA stands for deoxyribonucleic acid, with the deoxyribo indicating which sugar is contained in DNA’s backbone. DNA’s backbone is made up of alternating deoxyribose sugar units and phosphate groups ( PO4 ). 1 December 2015
Where is the sugar in DNA?
DNA and RNA are made up of nucleotides that are connected together in a chain by chemical connections called ester bonds between one nucleotide’s sugar base and the phosphate group of the next nucleotide. Each nucleotide has a sugar at the 3′ end and a phosphate at the 5′ end.
What is the role of sugar in DNA?
Sugar is an essential component of DNA. Deoxyribose is one of the two sugar-phosphate backbone components of all DNA strands, and it joins with a nitrogenous base to produce a nucleotide. The double helix structure of DNA is formed by them connecting in pairs in large numbers.
Who invented forensic DNA testing?
Sir Alec Jeffreys is a British politician.
When and where was DNA discovered?
Miescher Discovers DNA, the First Piece of the Puzzle Few people understand it, but 1869 was a watershed moment in genetic study since it was the year when Swiss physiological chemist Friedrich Miescher discovered “nuclein” within the nuclei of human white blood cells.