Epiboly: The thinning and spreading of the animal cap cells over the vegetal hemisphere, powered by proliferation and radial intercalation. is critical for activating the genes that specify cells to be endoderm. Thus, the fate of the vegetal cells is to become endodermal

TLS Online TPP Program

#Id: 6976

#Unit 8. Inheritance Biology

TLS Online TPP Program

#Id: 6977

#Unit 8. Inheritance Biology

TLS Online TPP Program

#Id: 6978

#Unit 8. Inheritance Biology

HUMAN TRISOMIES

Trisomy 18 - Edward syndrome

Trisomy 13 - Patau syndrome. 

TLS Online TPP Program

#Id: 6979

#Unit 8. Inheritance Biology

Uniparental Disomy Inheritance of both chromosomes of a homologous pair from a single parent.  Many cases of uniparental disomy probably originate as trisomies. 

TLS Online TPP Program

#Id: 6980

#Unit 8. Inheritance Biology

Polyploidy 

Some organisms possess more than two sets of chromosomes—they are polyploid.  Allopolyploidy Condition in which the sets of chromosomes of a polyploid individual are derived from two or more species.  Autopolyploidy Condition in which all the sets of chromosomes of a polyploid individual are derived from a single species.

TLS Online TPP Program

#Id: 2140

#Unit 9. Diversity of Life Forms

Darwin have agreed that all animals with vertebrae form a single phylogenetic branch of species that share a common ancestor.