Exam 11: Gene Expression and Epigenetics

The human genome encodes about 21,000 genes,which encode about _____ mRNAs,which are translated in pieces and arranged to encode about _____ different proteins.

About __ percent of human genes are alternately spliced.

A promoter of a gene is the sequence at the _____ end of a gene where RNA polymerase and transcription factors bind,marking the _________.

Globin chain switching replaces gamma chains with _____ chains in adult hemoglobin.

The complexity of microRNA function is that

A microRNA is ____ bases long.

Hemoglobin in the embryo consists of

Fetal hemoglobin carries _______ percent more oxygen than adult hemoglobin.

Modifiers of gene expression include

Histone proteins

Pseudogenes are

The term _______ refers to genes that encode proteins that control lipid synthesis.

In the adult pancreas,the beta,alpha,gamma,and F cells are

In chromatin remodeling,acetyl groups bind

Multiple proteins can be produced from a single gene by

Chromatin remodeling can block ________ and microRNA binding can block _______.

Gene expression profiles differ from classic gene maps in that

The main limitation of a drug that treats disease by altering chromatin remodeling is that

Blood plasma contains about ____ different types of proteins,but only ___ types account for 90 percent of the total number of proteins.

The reason for fetal globin chain switching is that