A gene family is defined as a group of genes that encode related or identical products as a result of gene-duplication events.

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#Id: 5203

#Unit 7. System Physiology – Animal

von Willebrand factor deficiency likewise causes a bleeding disorder (von Willebrand disease) by reducing platelet adhesion and by lowering plasma factor VIII

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#Unit 11. Evolution and Behavior

There are ‘n’ numbers of alleles at a given locus in a diploid population. The proportion of all  homozygotes in the population

A. All alleles are equal abundant

B. All alleles are not in equal abundant

(1) 1/n and <1/n  (3) 1/n2 and <1/n2

(2) 1/n and >1/n  (4) 1/n2 and >1/n2

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#Unit 11. Evolution and Behavior

Directional selection favors individuals at one extreme of a phenotypic distribution that have greater reproductive success in a particular environment.

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#Unit 4. Cell Communication and Cell Signaling

In resting cells,

NF-κB binds directly to an inhibitor called I-κBα

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#Unit 2. Cellular Organization

Myosin II

Two heads and assembles into bipolar filaments

Small and non-processive

Function- Contraction