I-cell disease

• almost all of the hydrolytic enzymes are missing from the lysosomes of many cell types.

• mis-sorting has been traced to a defective or missing GlcNAc phosphotransferase.

TLS Online TPP Program

#Id: 8643

#Section 3: Genetics, Cellular and Molecular Biology

When E2Fs are bound to Rb, not only are they transcriptionally inactive, but they also function to repress transcription by recruiting chromatin-modifying enzymes that promote deacetylation and methylation of specific histone lysines.

TLS Online TPP Program

#Id: 8211

#Section 3: Genetics, Cellular and Molecular Biology

Autophagosome, or autophagic vesicle

formation of a flattened double-membrane cup-shaped structure that envelops a region of the cytosol or an entire organelle.

TLS Online TPP Program

#Id: 9298

#Section 2: General Biology

A.  Chloroplasts

TLS Online TPP Program

#Id: 9147

#Section 3: Genetics, Cellular and Molecular Biology

TLS Online TPP Program

#Id: 8320

#Section 3: Genetics, Cellular and Molecular Biology

The lag phase can be reduced or abolished entirely by adding premade nuclei.