Biology of the Living Earth Exam #3 Retake Review Fall 2024

Front

Which enzyme is responsible for using nucleotides to build 2 complimentary DNA strands during DNA Replication?

Back

DNA Polymerase is the enzyme that synthesizes new DNA strands by adding nucleotides complementary to the template strand.

Front

DNA is made up of monomers called _____________.

Back

Nucleotides are the monomers that make up DNA, consisting of a sugar, a phosphate group, and a nitrogenous base.

Front

In DNA, the nitrogenous base Adenine pairs with ______________.

Back

Thymine pairs with Adenine in DNA through hydrogen bonds, following the base pairing rules.

Front

What do the letters DNA stand for?

Back

DNA stands for Deoxyribonucleic Acid, which is the molecule that carries genetic information.

Front

Which molecule is shown in the diagram?

Back

A Nucleotide is the basic building block of DNA, consisting of a sugar, a phosphate group, and a nitrogenous base.

Front

What is the function of DNA Ligase?

Back

DNA Ligase is an enzyme that joins Okazaki fragments on the lagging strand during DNA replication, sealing nicks in the sugar-phosphate backbone.

Front

What are the four nitrogenous bases found in DNA?

Back

The four nitrogenous bases in DNA are Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).

Front

What is the structure of DNA?

Back

DNA has a double helix structure, consisting of two strands that wind around each other, with bases pairing in the center.

Front

What is the role of Primase in DNA replication?

Back

Primase synthesizes short RNA primers that provide a starting point for DNA Polymerase to begin DNA synthesis.

Front

What is the difference between DNA and RNA?

Back

DNA contains deoxyribose sugar and is double-stranded, while RNA contains ribose sugar and is usually single-stranded.