Chapter 12

Front

What injection caused the mice to die from pneumonia?

Back

Disease-causing bacteria (smooth colonies)

Front

What did Avery conclude when he repeated Griffith's experiment?

Back

DNA was the transforming factor

Front

What are the components of a nucleotide, found in DNA?

Back

5-carbon sugar called deoxyribose, phosphate group, and nitrogenous base

Front

What holds nitrogenous base pairs together?

Back

Nitrogen Bonding

Front

How many copies of a gene result from the replication of a single DNA molecule, and are these copies identical to the origional gene?

Back

Two copies, Yes they are identical due to semi-conservative replication

Front

What is happening to the DNA molecules during mitosis in relation to histone proteins?

Back

The DNA is tightly coiled into histone proteins

Front

What is the result of DNA replication?

Back

Two copies of a DNA molecule of the same gene

Front

In which direction does DNA replication occur?

Back

Both directions

Front

What is the difference between a DNA molecule and an RNA molecule?

Back

DNA is double stranded while RNA is single stranded

Front

Identify the 3 types of RNA and their function.

Back

Messenger RNA-carries copies of instruction

Ribosomal RNA- combined with proteins to form ribosomes

Transfer RNA- carries amino acid to ribosomes