Identifying DNA as the genetic material

Open Ended

Do you Know anything about UAE’s national DNA research program.

Open Ended

Inside which part of the cell is DNA located?

What does Heritable means?

Give example from your life of something can be inherited.

Open Ended

What is the Role of DNA?

Multiple Choice

1️⃣ What does DNA stand for?

• Ribonucleic Acid

• Deoxy Acid

• Deoxyribonucleic Base
• Deoxyribonucleic Acid

Multiple Choice

2️⃣ Where is DNA found inside the cell?

• In the mitochondria of eukaryotic cells
• In the cytoplasm of prokaryotic cells
• In the nucleus.

• In the ribosomes of both cell types

Multiple Choice

3️⃣ What does it mean when we say DNA is heritable?

• It means that DNA is only found in certain species.
• It means that DNA cannot change over time.
• It means that DNA is only present in adults.
• It means that DNA can be transmitted from one generation to the next.

Multiple Select

4️⃣ What is the main role of DNA?

• It stores genetic information

• It provides energy to the cell

• It helps cells move

• takes instructions from DNA to make proteins

1-Griffith finds a ‘transforming principle.

look to the picture that explains what did Griffith do
in his experiment and explain it to us

Multiple Choice

What happened when Griffith injected mice with a mixture of heat-killed S bacteria and live R bacteria?

• The mice survived and showed no signs of illness.
• The mice died due to the transformation of live R bacteria into virulent S bacteria.
• The mice became immune to both S and R bacteria.
• The mice developed a new strain of bacteria that was harmless.

Multiple Choice

Which two types of bacteria did Griffith use in his experiment?

• Smooth (S) and Rough (R)
  

• Big (B) and Small (S)
  

• Fast (F) and Slow (S)

• Round (R) and Square (S)

Multiple Choice

Which molecule did Avery’s experiment show was responsible for transformation?

• RNA
• Lipids
• Proteins
• DNA

Multiple Choice

Why was Avery’s experiment important?

• Avery's experiment was important because it proved that DNA is the genetic material.
• Avery's experiment was the first to identify RNA as the carrier of genetic information.
• Avery's experiment showed that proteins are the genetic material.
• Avery's experiment demonstrated that carbohydrates play a role in heredity.

Hershey-Chase Experiment

​What is a Bacteriophage?___________
You can search online

Multiple Choice

What type of virus did Hershey and Chase use in their experiment?

• Lambda phage
• bacteriophage

• T4 bacteria

• M13 phage

Multiple Choice

What was the main conclusion of Hershey and Chase’s experiment?

• DNA is the genetic material.
• Proteins are the genetic material.
• RNA is the primary genetic material.
• Carbohydrates are the genetic material.

Its time for You to do it

Read the questions carefully and solve them in your copybook.


pay attention to the time

Post-Quiz

Please take your time, think carefully, and try to answer each question as best as you can.

Remember, this quiz is important for your learning—so focus, stay calm, and do your best! You've got this! 😊

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Open Ended

Is DNA made as one whole unit, or is it built from smaller repeating units?

Open Ended

Since DNA is made of smaller building units called nucleotides, what are the three components that make up a nucleotide?

Multiple Choice

What are the three main components of a nucleotide?

• Hydrogen, oxygen, carbon
• Phosphate group, sugar, nitrogenous base

• Carbohydrates, proteins, lipids
• Nucleic acids, enzymes, vitamins
• Amino acids, fatty acids, glycerol

Multiple Choice

How many nitrogen bases are found in DNA, and what are they?

• 4 nitrogen bases:

  Adenine

  Thymine

  Cytosine

  Xanthine

• 4 nitrogen bases:

  Adenine

  Uracil

  Cytosine

  Guanine

• 5 nitrogen bases:

  Adenine

  Uracil

  Cytosine

  Guanine

  Thymine

• 4 nitrogen bases:

  Adenine Thymine

  Cytosine

  Guanine.

• 3 nitrogen bases:

  Adenine Thymine

  Cytosine

1-How many Nucleotides in the picture?
2-Which nitrogen bases always pair together? Write what you notice.
3-What type of bonds do you see? Between which parts do these bonds form?

Fill in the Blank

I DO

According to Chargaff’s rule, if a DNA sample has 30% adenine (A), what percentage of thymine (T) Cytosine (C) and Guanine (G) would it have?

=

%

=

%

=

%

Multiple Choice

Which nitrogen bases always pair together in DNA?

• A with G

  C with T
  

• A with C

  G with T

• A with T

  C with G
  

• A with U

  C with G

Multiple Choice

What type of bond holds the nitrogen bases together?

• Metallic bonds
• Covalent bonds
• Ionic bonds
• Hydrogen bonds

Multiple Choice

According to Chargaff’s rule, if a DNA sample contains 35% cytosine (C), what percentage of guanine (G) will it have?

• 40%
• 35%
• 30%
• 25%
• 10%

Its time for You to do it

Read the questions carefully and solve them in your copybook.


pay attention to the time

Post-Quiz

Please take your time, think carefully, and try to answer each question as best as you can.

Remember, this quiz is important for your learning—so focus, stay calm, and do your best! You've got this! 😊

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