Plasmids are essential DNA elements sometimes found in bacteria.

Which of the following does not apply to DNA?

GCCCAAAG is a molecule of

The arrow in the diagram shown is pointing to:

The core (nucleocapsid) of every virus particle always contains: 

The mechanism by which DNA is replicated is said to be:

Transcription of an operon is determined by a single one of these:

Eukaryotic DNA contains these non-coding sequences within gene-coding regions of DNA.

The momentary expression of a sub-set of an organism’s genes represents the observed:

Researchers collected some data to measure the distance between Mars and the Sun.  The distance variable in this study is variable.   Suppose the researchers also collected data on stars using “Stellar classification” – The seven main types are M, K, G, F, A, B and O. This is a classification based on temperature: M stars are the coldest stars and O stars are the hottest. The variable “Stellar classification” would be variable.