DNA & DNA Replication

Front

Why does DNA replicate?

Back

To prepare for cell division, so the new cell has a copy of the DNA.

Front

How do RNA nucleotide bases differ from DNA nucleotide bases?

Back

RNA contains uracil and ribose.

Front

In a DNA nucleic acid molecule, what joins nitrogenous bases together?

Back

Hydrogen bonds.

Front

Which of the following is a base pair?

Back

Cytosine - Guanine.

Front

What is a mutation?

Back

Any change in the correct nucleotide sequence in a gene.

Front

What are the four nitrogenous bases in DNA?

Back

Adenine, Thymine, Cytosine, Guanine.

Front

What is the role of DNA polymerase in DNA replication?

Back

DNA polymerase synthesizes new DNA strands by adding nucleotides complementary to the template strand.

Front

What is the structure of DNA?

Back

DNA is a double helix composed of two strands of nucleotides.

Front

What is the function of messenger RNA (mRNA)?

Back

mRNA carries genetic information from DNA to the ribosome for protein synthesis.

Front

What is the difference between DNA and RNA?

Back

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