Each actin subunit (globular or G-actin) is a 375-amino-acid polypeptide contains a Mg+2 ion complexed with either ATP or ADP

TLS Online TPP Program

#Id: 7927

#Section 3: Genetics, Cellular and Molecular Biology

Function of the ER:

most eukaryotic cells is to sequester Ca2+ from the cytosol (High concentration of Ca2+-binding proteins in the ER facilitates Ca2+ storage)

TLS Online TPP Program

#Id: 8963

#Section 3: Genetics, Cellular and Molecular Biology

If the duplicate is redundant and does not provide a fitness benefit, it will be lost by deletion or the accumulation of loss of-function mutations.

A second fate is that a duplicate can simply retain its original function.

TLS Online TPP Program

#Id: 10292

#Section 2: General Biology

TLS Online TPP Program

#Id: 8644

#Section 3: Genetics, Cellular and Molecular Biology

Phosphorylation on multiple sites by G1 CDKs blocks Rb from associating with E2F and promotes its export out of the nucleus.

TLS Online TPP Program

#Id: 8882

#Section 3: Genetics, Cellular and Molecular Biology

The Aurora kinase family members Aurora A and Aurora B play key roles in mitotic spindle formation and in ensuring that chromosomes attach correctly to the mitotic spindle so that they are segregated accurately during mitosis.