Condition favor polygyny

Resource-based polygyny - Choosing dominant males, a female may be gaining access to good resources.

Harem mating structures - Sometimes males defend a group of females without commanding a resource - based territory. 

Ex- horses and zebras, some deer, lions, and seals.

Communal courting - In some instances, particularly in birds and mammals, males display in designated communal courting areas called leks.

TLS Online TPP Program

#Id: 7030

#XL - T Zoology

James Hutton and Charles Lyell – Uniformitarianism Darwin was greatly influenced by Lyell’s teachings, and he adopted uniformitarianism in his thinking about evolution.

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#Id: 4694

#XL - T Zoology

An individual carrying the allele can pass copies of it to his or her own children. This is the allele’s direct fitness. The allele can also pass extra copies of itself to the next generation as the result of the increased fitness of relatives that benefit from the altruistic individual’s actions. This is the allele’s indirect fitness. 

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#Id: 8859

#XL - R Botany

During G1, 

cohesins associate with chromosomes by cohesin loading factors Scc2 and Scc4 and unloaded continuously by a cohesin associated complex Pds5 and Wap1 proteins. 

TLS Online TPP Program

#Id: 8917

#XL - T Zoology

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#Id: 8396

#XL - Q Biochemistry

Each sarcomere contains two major types of filaments: 

Thick filaments (myosin II)

Thin filaments (actin and associated proteins)