2.2 Review HNRS Biology

Front

What do the circles in a DNA structure represent?

Back

Phosphates

Front

What type of mutation involves the replacement of one base with another?

Back

Substitution mutation

Front

What is the amino acid sequence for the mRNA strand AUG - CGC - CUG - UAA?

Back

met - arg - leu - STOP

Front

Which components of DNA are referred to as the genetic code?

Back

Nitrogenous bases

Front

What do the lines between nitrogen-containing bases in DNA represent?

Back

Hydrogen Bonds

Front

What is the role of nitrogenous bases in DNA?

Back

They encode genetic information.

Front

What is a deletion mutation?

Back

A mutation where one or more bases are removed from the DNA sequence.

Front

What is an insertion mutation?

Back

A mutation where one or more bases are added to the DNA sequence.

Front

What is the function of covalent bonds in DNA?

Back

They connect the sugar and phosphate backbone.

Front

What is the significance of the start codon AUG in protein synthesis?

Back

It signals the beginning of translation.