Populational change is Darwin’s hypothesis that evolution occurs by changes in the proportions (frequencies) of different variant kinds of individuals within a population.

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#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.

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#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.

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#Id: 2141

#Unit 9. Diversity of Life Forms

Phylogenetic relationships among species are estimated from similarities and differences.

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#Id: 2142

#Unit 9. Diversity of Life Forms

Phylogenetic relationships are based on,

a. Plesiomorphic character

b. Apomorphic character

TLS Online TPP Program

#Id: 2143

#Unit 9. Diversity of Life Forms

Plesiomorphic character- Primitive/unchange from ancestor Synplesiomorphic character- Primitive share ancestral character

TLS Online TPP Program

#Id: 2144

#Unit 9. Diversity of Life Forms

Apomorphic character- Derived specialized character

a. Synapomorphic character- Derived trait is share

b. Autapomorphic character- Derived trait that is unique to taxon