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KonstantinChe [14]
2 years ago
9

What combines in different ways to make up all matter? 1.

Biology
1 answer:
Ann [662]2 years ago
3 0

Answer:

Atoms

Explanation:

Atoms are the basic building block of all matter

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Boris Magasanik collected data on the proportion of each base in RNA from different species. To compare the relative amount of e
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Answer:

The nucleic acid is a macromolecule present in living systems in the form of either DNA or RNA, whose molecule consists of many nucleotides which are linked with each other to form long chains. The presence of DNA or RNA in an individual promotes continuity of life. The variability and complexity of nucleic acid are dependent on its constituent molecules as, sugar, a phosphate group, and a nitrogenous base. However, two monocyclic nitrogenous bases were classified purines (adenine:A, guanine:G) and pyrimidines (thymine:T, cytosine:C, and uracil:U).

In addition, RNA is a single-stranded structure which differs from DNA in two aspects, the sugar content of RNA is ribose, and pyrimidine base uracil replaces the thymine base of DNA. A ratio between two strands of DNA can be calculated by using Chargrff's rule which states that "DNA from any cell of all organisms possess a 1:1 ratio (base Pair Rule) of pyrimidine and purine bases'.

The purine to pyrimidine ratio in RNA with different bases is given below in the following table:

Presence of single strand in RNA does not follow chargaff's rule and alters the purine: pyrimidine ratio. The above ratio of each base in the given information is not equal, due to which the ratio of purines to pyrimidines is different. The ratio of DNA and RNA is not equal because DNA has its complementary DNA strand. However, bases in RNA might vary due to its single-strandedness property, but its ratio is dependent on the species.

Therefore, it can be concluded that the ratio of purines to pyrimidines is dependent on the species due to its genetic makeup. Hence, option (c) is correct.

7 0
3 years ago
The number of protons within an atom of an element is equal to its atomic mass true or false
Marta_Voda [28]
False, atomic mass is the weighted average mass of an atom of an element based on the relative natural abundance of that element's isotopes
8 0
3 years ago
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two brown-eyed parents have produced three blue-eyed sons. what can be concluded about the parents?a)only the father carries an
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They both carry a recessive allele for blue eyes because answer A doesnt state anything about the allele dominance, answer B wouldnt be right because if blue eyes was dominant then the mother would have blue eyes as the dominant gene always shows, but she has brown
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Which enzymes are found in detergents that remove mucus and oil stains from cloth soaked in water ?​
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Most biological laundry detergents contain lipase and protease enzymes, both of which are found in the body. Lipases break down fats and oils, while proteases work to break down protein chains. Their ability to break down these compounds makes them excellent for stain removal.

5 0
3 years ago
List the measures we can take to conserve.<br>a) water<br>b) electricity <br>c) trees<br>​
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Answer:

Taking shorter showers or turning off the faucet while brushing your teeth can reduce water waste in your home. Only use your dishwasher or washing machine when there is a full load, and switch to energy-saving appliances if possible.

Explanation:

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