Unit 4 Lessons 1 & 2 DNA Structure & Replication

Front

What phase of the cell cycle does DNA replication take place?

Back

S phase

Front

Where is DNA found in a eukaryotic cell?

Back

Nucleus

Front

According to the Base pair rule, if a DNA molecule is made up of 30% Cytosine bases, what percentage of the molecule will be Thymine?

Back

20%

Front

What best describes a DNA molecule?

Back

Double helix

Front

Which units are repeatedly joined together to form a strand of DNA?

Back

Nucleotides

Front

What are the building blocks of DNA?

Back

Nucleotides, which consist of a sugar, a phosphate group, and a nitrogenous base.

Front

What are the four nitrogenous bases in DNA?

Back

Adenine (A), Thymine (T), Cytosine (C), Guanine (G).

Front

What is the function of DNA helicase during replication?

Back

To unwind the DNA double helix.

Front

What is the role of DNA polymerase?

Back

To synthesize new DNA strands by adding nucleotides complementary to the template strand.

Front

What is the significance of the Base Pair Rule?

Back

It ensures that adenine pairs with thymine and cytosine pairs with guanine, maintaining the structure of DNA.