Positive assortative mating

Individuals' mate with others who are like themselves phenotypically for selected traits. The net effect of positive assortative mating is a progressive increase in the number of  homozygous genotypes (AA and aa)

TLS Online TPP Program

#Id: 9822

#XL - R Botany

VLFRs and LFRs both obey the law of reciprocity

TLS Online TPP Program

#Id: 8771

#XL - T Zoology

TLS Online TPP Program

#Id: 8604

#XL - R Botany

G1/S Cyclin–CDKs

In human - cyclin E-CDK 2 

In budding yeast - CIn 1/2-Cdc 28

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#Id: 9981

#XL - T Zoology

Delipidation process reduces Wnt signaling, creates a negative feedback mechanism for preventing excessive Wnt signaling.

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#Id: 8132

#XL - Q Biochemistry

Lipids as pigments in plants and bird feathers.

Birds acquire the pigments that color their feathers red or yellow by eating plant materials that contain carotenoid pigments, such as canthaxanthin and zeaxanthin.

The differences in pigmentation between male and female birds are the result of differences in intestinal uptake and processing of carotenoids.