Chapter 3

The anticodon for the triplet UCA is

AGU

Chromosomes consist of ________ and ________.

DNA; proteins

The mRNA sequence that is complementary to the sequence ATC on DNA is

UAG

The complex structures of DNA and protein found in the cell nucleus are

chromatin and histones.

The triplet codes needed to specify a specific polypeptide chain are found in the

gene.

The functional units of DNA that contain the instructions for making one or more proteins are

genes

The components of ribosomes are formed within

nucleoli

Histones are found in

nucleosomes.

Most of a cell's DNA is located in its

nucleus

The control center for cellular operations is the

nucleus

mRNA is needed to synthesize ________ in the cytoplasm.

proteins

As each codon arrives at the active site of a ribosome, it attracts another molecule containing the anticodon. This molecule is called

tRNA

The smallest living unit within the human body is

the cell.

The process of forming mRNA is called

transcription.

The process of protein formation directed by mRNA is called

translation.