DNA structure lesson: 18 Slides (12th Grade)

18 Slides • 8 Questions

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Multiple Choice

The nitrogen and phosphorus cycles help recycle nutrients for living things. Which part of the nucleotide needs the phosphorus cycle to form?

1

nitrogen base

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5 carbon sugar

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phosphate

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8

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Hotspot

Click on the extra oxygen found in ribose!

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Adenine

Thymine

Guanine

Cytosine

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Fill in the Blanks

The DNA molecule in the image has been cut in half. Type in the letters for the complementary bases using the base-pairing rules from top to bottom.

18

Fill in the Blanks

Below is a sequence of bases read along the length of one side of a DNA molecule. Type in the letters for the complementary bases using the base-pairing rules.

CGGTCAAAT

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Dropdown

If a DNA sequence contains 23% Adenine, it will have

Thymine,

Guanine and

Cytosine. You may use an answer more than once.

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Dropdown

Review: DNA molecules are made of

strands twisted together. These strands are made of multiple units known as

. Each nucleotide is made up of a

base, a

and a

sugar.

25

Dropdown

There are 4 different types of bases -

. Adenine always pairs with

, and cytosine always pairs with

.

26

Fill in the Blanks

Exit Ticket: Below is a sequence of DNA. Type in the complementary sequence using the base-pairing rules.

ATCGTACGTACGGATACC

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