2.6 Structure of DNA and RNA Flashcards

1
Q

What are nucleotides made from?

A

from nucleic acid to make DNA or RNA and are made from three parts

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2
Q

What are the three parts that nucleotides are made from?

A

Pentose sugar, phosphate group, base

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3
Q

The different purines?

A

Adenine, guanine

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4
Q

The different Pyrimidines?

A

Cytosine, Thymine, uracil

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5
Q

Difference between RNA and DNA?

A

RNA - pentose sugar is ribose, and the bases are adenine, guanine, cytosine and uracil. One strand
DNA - pentose sugar is deoxyribose and the bases are adenine, guanine, cytosine and thymine. 2 stands

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6
Q

how are nucleotides connected?

A

by covalent bonding between pentose sugar and the phosphate of the next one.

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7
Q

What is the structure of DNA

A

It is a double helix which means antiparallel, run alongside each other but in opposite directions and are held together by hydrogen bonding.

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8
Q

Who discovered structure of DNA?

A

crick and watson

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9
Q

Which nitrogenous bases go with which for DNA ?

A

Adenine with Thymine, Guanine with Cytosine

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10
Q

Which nitrogenous bases go with which for RNA ?

A

Adenine with Uracil, Guanine with cytosine

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