In yeast, centromeric nucleosomes consist of Cse4, H4, and a nonhistone protein Scm3, in place of H2A-H2B dimers.

TLS Online TPP Program

#Id: 6973

#Unit 8. Inheritance Biology

SEX-CHROMOSOME ANEUPLOIDIES 

The most common aneuploidies seen in living humans.

Aneuploidy of the human sex chromosomes is better tolerated than aneuploidy of autosomes.

AUTOSOMAL ANEUPLOIDIES

There is no mechanism of dosage compensation for autosomes.

TLS Online TPP Program

#Id: 8432

#Unit 10. Ecological Principles

TLS Online TPP Program

#Id: 6044

#Unit 10. Ecological Principles

Precipitation and temperature, two primary non biological factors have major impacts on the biome Periodic fires are important in maintaining some grassland and shrub climax communities 

TLS Online TPP Program

#Id: 2503

#Unit 13. Methods in Biology

In the Isoelectric Focusing pH gradient is formed by the introduction into the gel of compounds known as ampholytes, which are complex mixtures of synthetic polyamino-polycarboxylic acids Ampholytes can be purchased in different pH ranges covering a wide band (e.g. pH 3–10).

TLS Online TPP Program

#Id: 6345

#Unit 8. Inheritance Biology

Hemophilia  

X-Linked recessive disease

Reduces blood clotting