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Levene investigated and found that the nucleic acid is composed of poly-nucleotides and each nucleotide is composed of one base, a sugar molecule and a phosphate. This was performed on the genome of________________

Levene investigated and found that the nucleic acid is composed of poly-nucleotides and each nucleotide is composed of one base, a sugar molecule and a phosphate. This was performed on the genome of________________ Correct Answer Yeast

Levene placed his initial proposal of nucleic acids being composed of nucleotides and nucleotides being composed of one of the four bases, a phosphate and a sugar molecule in 1919. He gathered all his evidence regarding the structure were from the repeated experiments of hydrolysis and analysis of the yeast nucleic acid.

Related Questions

A trader deals in sugar. He had sugar I and Sugar II. He wish to sell the mixture of both the sugar of Rs. 24. In what ratio must he mix the sugar to sell the mixture at Rs. 24, when cost of sugar I is Rs. 28 per kg and sugar II is Rs. 14 per kg.
In a batch process, the reaction takes place in the presence of an acid medium. The acid is drained from the reaction vessel at the rate of 15ml/s as a result of the density difference of the acid from the reacting component. To avoid wastage of acid, it is recycled to an acid tank which has 1000 L capacity. The acid drained from the reaction vessel, picks up 50 g/L solids from the reactor. Acid is fed once again to the process from acid tank. When the process is started, the acid is almost pure in the tank as a result of filtration. As the reaction proceeds, acid in the tank gets more and more contaminated with the solids. The concentration of the solids should not exceed 100 g/L from the process point of view. The batch time is 16h. Estimate whether the concentration of the solids will exceed 100g/L during the batch reaction.
The rate of sugar type A is ₹ 36.50/kg and the rate of sugar type B is ₹ 42.20/kg. We mix both type of sugar, then the rate of the mixture of sugar become ₹ 39.92/kg. What quantity of the sugar type B should be mixed with 40 kg of sugar type A?
Consider the following statements regarding Genome Sequencing: 1. Genome sequencing is figuring out the order of DNA nucleotides, or bases, in a genome—the order of Adenine, Cytosine, Guanines, and Thymine that make up an organism's DNA. 2. Human genome is made up of 46 chromosome pairs with a total of about 3 billion DNA base pairs. 3. There are 24 distinct human chromosomes: 22 autosomal chromosomes, plus the sex-determining X and Y chromosomes. Which of the statements given above is/are correct?
Each passage consists of six sentences. The first (S1) and the sixth sentences (S6) are given in the beginning. The middle four sentences in each passage have been removed and jumbled up. These are labelled as P, Q, R, and S. You are required to find out the proper sequence of these sentences from the given alternatives 1), 2), 3), and 4) to form a meaningful paragraph. S1. Just how much sugar is too much? The World Health Organization (WHO) says not more than 12 teaspoons a day.  P. Doctors add that sugar naturally present in whole fruits and milk is not considered free sugars. Fruits are relatively high in natural sugar but are also high in vitamins, minerals, fibre and antioxidants.  Q. They offer more nutrients than any other food group.   R. This resulting weight gain is now being linked to higher risk of diseases from diabetes to some forms of cancer.  S. Overload of sugar in diet is known to cause weight gain.  S6. Thus, it is advisable to consume at least five servings of fruits and vegetables a day. The WHO has noted that a large amount of free sugar consumed is “hidden” in processed foods and drinks. 
Which one is incorrect match:-   TITRATION INDICATOR 1) Strong acid v/s strong base Phenolphthalein & methyl Orange 2) Weak acid v/s strong base Phenolphthalein 3) Strong acid v/s weak base Methyl orange 4) Weak acid v/s weak base Methyl Red
Which of the following fertilisers are covered under the Government of India's Nutrient Based Subsidy scheme? 1. Diammonium Phosphate (DAP) 2. Monoammonium Phosphate (MAP) 3. Triple Super Phosphate (TSP)  4. Single Super Phosphate (SSP) fertilizers Select the correct answer using the codes given below.
One Sugar Solution has 17% sugar. Another sugar solution has 7% sugar. How many liters’ of the second solution must be added to the 20L of the first solution to make a solution of 12 % sugar?
Consider the following statements regarding the characters of coacervate droplets and choose the correct answer:
1. These can take up materials from the external medium and some of them show enzymatic activities
2. When glucose-I-phosphate is dissolved in the equilibrium liquid, the droplets are found to store starch
3. Coacervate droplets of some sort have been prepared with phosphorylase and β-amylase
4. Polynucleotides were synthesized enzymatically within coacervate droplets
In the following question, two statements are numbered as A and B. On solving these statements we get quantities A and B respectively. Solve for the both quantities and chose the correct option. Quantity A: In the mixture of carbon and metal flux of 1 kg volume, 14% is carbon. How much amount of metal flux needs to add, so that proportion of carbon becomes 4%? Quantity B: The sugar sold by a shopkeeper contained 28% of poor quality sugar. What quantity of good quality of sugar should be added to 250 kg of sugar so that the proportion of poor quality sugar becomes 5%?