Exam 3: Cell Structure and Genetic Control

The pH of the cytoplasm is more ___________ than the interior of a primary lysosome.

Small RNA and protein regions are joined together to make functional mRNA by

Which of the following is NOT true of the nuclear envelope?

A cell lacking a Golgi apparatus would not be able to add _____________ to proteins.

Loss of DNA sequences at the ends of chromosomes in the ________ region may cause cell senescence.

Pseudopods can be used for both amoeboid movement and phagocytosis.

Oncogenes

This organ contains cells that are haploid:

Gene silencing may be accomplished by

Cells actively involved in secreting proteins would contain large numbers or quantities of

In epigenetic inheritance

Primary cilia may serve sensory functions such as vision.

What chemical change occurs to histones that will turn on genetic transcription?

______ molecules aid in the folding of a polypeptide chain into its tertiary structure.

How many proteins does it appear that humans can produce?

Microtubules and microfilaments are the primary components of the

This process is also known as reduction division:

Intake of a specific molecule from the extracellular compartment by a cell occurs through

One possible reason that the proteome is so much larger than the genome is that mRNAs can be spliced in alternative ways thereby increasing the number of products produced from a particular gene.

One example of a tumor suppressor gene is p53,which protects against cancer by directly blocking the ability of cyclins to stimulate cell division.