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Knihovna

Copy of DNA Structure and Replication Questions (5/28/2026)

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Poslední aktualizace about 1 month ago
18 Dotazy
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Use your notes to complete the following questions.

Use your notes to complete the following questions.

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1
1
3.5
2
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2
5
1
Otázka 1
1.

Explain what is happening to the DNA molecule and what enzymes are involved.

I will have to grade this.

Otázka 2
2.

Explain what is happening to the DNA molecule and what enzymes are involved.

I will have to grade this.

For 3-8, identify the nitrogenous bases.

Note the pattern of the hydrogen bonds between those already labeled.

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Otázka 3
3.

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Otázka 4
4.

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Otázka 5
5.

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1
1

Identify the labeled parts of the nucleotide for 9-11.

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Otázka 9
9.

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Otázka 10
10.

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Otázka 11
11.

Otázka 12
12.

Identify a correct nucleotide in the image below.

Otázka 13
13.

a. In a single strand of DNA, the on one nucleotide binds to the deoxyribose of the next nucleotide.

b. Chargaff's rules states that the DNA of any organism contains equal proportions of and and equal proportions of and (I have to regrade this).

c. Logical thinking using Chargaff's rules - In a strand of DNA, if the percentage of adenine was 20%, the percentage of guanine in the same strand must be .

d. bonds connect the nitrogen bases of one strand to the nitrogen bases of the other strand of DNA.

Otázka 14
14.

Why is DNA replication called semi-conservative?

I will have to grade this.

Otázka 15
15.

What does it mean that the two strands of DNA are complementary?

I will have to grade this.

Otázka 16
16.

Reorder the following steps from beginning to end.

  1. Two new identical DNA molecules have been produced.

  2. The DNA double helix breaks or unzips down the middle between the base pairs.

  3. A complementary strand is created for each of the two strands of the original double helix.

  4. The enzyme DNA polymerase moves along the exposed strands and adds complementary nucleotides to each nucleotide in each existing strand.

Otázka 17
17.

Below is one-half of a DNA molecule. Create the complementary strand (USE UPPERCASE LETTERS).

A

T

G

C

A

A

A

T

T

G

C

T

C

A

C

C

G

G

G

G

A

T

C

A

G

Otázka 18
18.

Match each item with its correct description.

Přetahovatelná položkaarrow_right_altOdpovídající položka

Primase

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Unwinds and separates the double-stranded DNA

DNA Helicase

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Adds complementary nucleotides to a growing DNA strand

DNA Polymerase

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Joins Okazaki fragments on the lagging strand

Topoisomerase

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Synthesizes a short RNA primer

DNA Ligase

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Relieves torsional strain ahead of the replication fork

Otázka 6
6.

Otázka 7
7.

Otázka 8
8.