Intro to DNA Replication

Presentation

•

Biology

•

9th Grade

•

Hard

•

NGSS

HS-LS1-1, HS-LS3-1, HS-LS3-2

Standards-aligned

John Hall

FREE Resource

12 Slides • 26 Questions

Multiple Choice

Why is DNA important?

it is very small and very complicated

it's in everything

it serves as the blueprint for traits of all living things

because we eat it every day for energy

Multiple Choice

Nitrogenous bases are joined by which type of bond?

polar bonds

ionic bonds

covalent bonds

hydrogen bonds

Multiple Choice

Which DNA base pair is connected by three hydrogen bonds?

Adenine-Thymine

Cytosine-Guanine

Adenine-Guanine

Thymine-Cytosine

Multiple Choice

Why is DNA replication considered fundamental to heredity?

Because it ensures genetic information is passed to the next generation

Because it creates new proteins directly

Because it determines eye color only

Because it only occurs in plants

Multiple Choice

What determines the code, or information, of a DNA molecule?

the shape (structure) of the nitrogen bases

the order (sequence) of the nitrogen bases

the color of the nitrogen bases

the frequency (number) of nitrogen bases

Multiple Choice

In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of

cytosine

guanine

thymine

uracil

Open Ended

Why is the complementary relationship between DNA bases important for genetic fidelity?

Type response here

Multiple Choice

DNA replication is __________.

Ligase

Helicase

Semiconservative

Conservative

Multiple Choice

What does it mean for DNA replication to be semi-conservative?

-1 old and 1 new

-The result is that there is 1 new identical DNA molecule

-2 old and 3 new

-The result is that there is 1 new identical DNA molecule

-4 old and 4 new

-The result is that there is 1 new identical DNA molecule

-3 old and 2 new

-The result is that there is 1 new identical DNA molecule

Fill in the Blanks

Multiple Select

Which of the following are stages of DNA replication?

Initiation

Elongation

Termination

Translation

Multiple Choice

What are the 3 steps of DNA Replication?

-double stranded

-it is a double helix

-a polymer made of small, repeating monomers (nucleotides)

1. Enzymes unzip/unwind DNA double helix

2. Single free nucleotides floating in the nucleus pair with open strands of A, T, C, and G

3. Two, complete identical DNA molecules are formed

Adenine (A)

Guanine (G)

Cytosine (C )

Thymine (T)

There are not 3 steps of DNA Replication

Multiple Choice

What is the main function of DNA helicase during DNA replication?

Synthesizing new DNA strands

Separating DNA strands

Adding RNA primers

Repairing DNA damage

Open Ended

Explain the role of DNA primase in the process of DNA replication.

Type response here

Multiple Choice

What is the role of Polymerase?

Polymerase has no role in DNA

Unzip/Unwinds the DNA double helix

Joins individual nucleotides to make DNA

Fixes, glues, or repairs DNA fragments to complete strands

Multiple Choice

What is the role of Ligase?

Joins individual nucleotides to make DNA

Fixes, glues, or repairs DNA fragments to complete strands

Ligase has no role in DNA replication

Unzip/Unwinds the DNA double helix

Multiple Choice

What enzymes are involved in DNA Replication?

-Helicase

-Polymerase

-DNA

-Helicase

-DNA

-Ligase

-DNA

-Polymerase

-Ligase

-Helicase

-Polymerase

-Ligase

Multiple Choice

Which enzyme is primarily responsible for synthesizing new DNA strands during DNA replication?

DNA Polymerase

DNA Ligase

DNA Helicase

RNA Primase

Open Ended

DNA is responsible for passing on hereditary information from one generation to the next. What is one thing you learned today about how DNA accomplishes this?

Type response here

Multiple Choice

Replicate the following strand of DNA:
AATCATGGA

AATCATGGA

TTAGTACCT

UUAGUACCU

GGATAUCUA

Multiple Select

What happens during DNA replication?

Select all correct answers.

DNA is copied

mRNA is made

Base-pairing rules are utilized

DNA leaves the nucleus

The 2 DNA strands are separated

Multiple Choice

Before DNA can replicate it has to...

Separate the two strands

Find 4 new strands

Ask its mom

Multiple Choice

How is the lagging strand synthesized?

Continuously

Discontinuously

Semi-continuously

Not synthesized

Multiple Choice

How is the leading strand synthesized?

Continuously

Discontinuously

Semi-continuously

Not synthesized

Multiple Choice

What is the complement to the DNA strand below:
5'-ATGCCAT-3'

5'-TACGGTA-3'

3'-TACGGTA-5'

3'-ATGGCAT-5'

5'-ATGGCAT-3'

Multiple Choice

order of replication

3, 2, 1, 4

2, 1, 4, 3

2, 3, 1, 4

3, 4, 1, 2

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