All Nucleotides include....?

A phosphate group

A five carbon sugar

One of five nitrogenous bases

How does a RNA strand differ from a DNA strand?

It contains ribose instead of deoxyribose

It is single stranded

It contains uracil in place of thymine

This enzyme is used to remove proteins from the cell extracts.

Protease

How many origins of replication are there in bacteria?

One

Where do kinetochores attach to chromosomes?

Centromeres

The zig-zag and solenoid models are associated with the____level of DNA organization.

30 nm fiber

A nucleosome is combination of_____and_______

DNA, histone proteins

Attaches adjacent Okazaki fragments, forming a continuous DNA strand.

DNA ligase

What is the site for the start of transcription?

Promoter

A functional protein would contain the information contained within what regions of DNA?

Exons

Alternative splicing allows an organism to______

Carry fewer genes

Which is a non-stop codon?

UUA

The primary structure of a protein is directly associated with______.

Alpha-helices and beta-sheets are examples of what level of protein structure?

Secondary structure

In eukaryotic systems, which of the following typically stops the process of translation?

A Carboxyl group

The C-terminal of a polypeptide always contains which of the following?

Stop codons

The wobble base is usually associated with which base of a codon?

Third

CpG islands are associated with which of the following?

DNA methylation

A heterordimer occurs when two identical transcription factors interact on a sequence of DNA.

False (homordimer)

Steroid hormones are an example of an effector which regulates regulatory transcription factor activity.

True

Silent mutations are possible due to the degenerate nature of the genetic code.

True