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Laabri

3.3 DNA Replication Lesson

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Last updated about 3 hours ago
12 Nsɛmmisa
Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

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1.

Which enzyme is responsible for "gluing" the Okazaki fragments together on the lagging strand?

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2.

Where does DNA replication occur?

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3.

When does DNA replication occur?

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4.

Why is it crucial that living things are able to replicate their DNA?

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5.

Match the enzyme on the left with the correct step of DNA replication on the right

Draggable itemarrow_right_altCorresponding Item

Ligase

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"unzips" the DNA molecule into two separate strands

Primase

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builds the complementary DNA strand by adding free nucleotides to the original strands of nucleotides

DNA polymerase

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bonds DNA fragments together

DNA helicase

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indicates where DNA replication begins

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6.

Select the correct order of replication based on the pictures below.

Mmuae Afoforo a Wobɛpaw:
Step 2
Step 4
Step 3
Step 1
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7.

Order the steps of DNA replication (first step goes at top)

  1. Ligase bonds the new DNA fragments

  2. DNA is unzipped

  3. Polymerase builds complimentary DNA strand

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8.

After replication, each strand has old strand(s). Therefore, DNA replication is said to be

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10.

According to the diagram above, what kind of bonds is responsible for linking together nucleotide pairs (base pairs)?

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11.

Name this structure above that has a phosphate group, sugar, and nitrogenous base.

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12.

Move the characteristics on the left to the correct category on the right.

  • contains deoxyribose

  • contains ribose

  • contains Uracil (U)

  • contains Thymine (T)

  • made up of nucleotides

  • moves into the cytoplasm

  • found only in the nucleus

  • BOTH DNA & RNA (1 item)

  • RNA only (3 items)

  • DNA only (3 items)