DNA structure & replication

Front

What is the role of DNA polymerase?

Back

DNA polymerase builds new strands by bringing in new nucleotide bases.

Front

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

Back

The complement is 3'-TACGGTA-5'.

Front

In eukaryotes, where is DNA usually found?

Back

DNA is usually found in the nucleus.

Front

What is the name of the enzyme that unwinds and unzips DNA?

Back

The enzyme is called DNA Helicase.

Front

What type of bond exists between base pairs in DNA?

Back

The weak bonds between base pairs are hydrogen bonds.

Front

What are the building blocks of DNA?

Back

The building blocks of DNA are nucleotides.

Front

What are the three components of a nucleotide?

Back

A nucleotide consists of a phosphate group, a sugar (deoxyribose), and a nitrogenous base.

Front

What are the four nitrogenous bases in DNA?

Back

The four nitrogenous bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).

Front

What is the base pairing rule in DNA?

Back

Adenine pairs with thymine (A-T) and cytosine pairs with guanine (C-G).

Front

What is the function of DNA ligase?

Back

DNA ligase joins Okazaki fragments on the lagging strand during DNA replication.