Living Systems: Unit 3 LC1 Review

Front

What is the structure of a DNA molecule?

Back

A DNA molecule is structured as a double helix.

Front

How is mRNA synthesized?

Back

mRNA is synthesized when it 'reads' the code (base sequences) in the DNA and forms a molecule of complementary bases.

Front

Which base does Guanine bond with?

Back

Guanine bonds with Cytosine.

Front

What base is found in RNA but not in DNA?

Back

Uracil is found in RNA but not in DNA.

Front

What replaces Thymine in RNA?

Back

Thymine is replaced by Uracil in RNA.

Front

What are the building blocks of DNA?

Back

The building blocks of DNA are nucleotides, which consist of a sugar, a phosphate group, and a nitrogenous base.

Front

What are the four nitrogenous bases in DNA?

Back

The four nitrogenous bases in DNA are Adenine, Thymine, Cytosine, and Guanine.

Front

What is the role of RNA in protein synthesis?

Back

RNA serves as a messenger that carries instructions from DNA for controlling the synthesis of proteins.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains Thymine, while RNA is single-stranded and contains Uracil.

Front

What is transcription in the context of genetics?

Back

Transcription is the process of copying a segment of DNA into RNA.