Which of the following is (are) unique to animals?

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#Question id: 21960

#Unit 2. Cellular Organization

When the metaphase chromosome is formed the scaffold associated regions are found 

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#Question id: 15192

#Unit 8. Inheritance Biology

Genes that control coat color in mammals represent some of the best early examples of genes with multiple alleles exhibiting different phenotypes. A classic example is the C gene in hamsters. Three of the known alleles of this gene are C, c^a and c^k. Each supplies a different amount of black pigment to the coat hair. The phenotypes of three different homozygous strains are as follows.

Based on the concepts of recessivity, determine whether ck and ca were dominant or recessive alleles by crossing the true-breeding albino hamsters  with the true-breeding sepia hamsters. From the resulting F1 progeny phenotype, what would be the ratio of F2 phenotype

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#Question id: 1212

#Unit 4. Cell Communication and Cell Signaling

The MAP kinase cascade stimulates transcription via specific transcription factors, and stimulates translation via

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#Question id: 13021

#Unit 10. Ecological Principles

Which marine zone would have the lowest rates of primary productivity (photosynthesis)? 

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#Question id: 5604

#Unit 5. Developmental Biology

Upon secretion of wnt, When Wnt attaches to the Frizzled receptor on a responding cell, the cell secretes Notum, cleaves off Wnt’s attached lipids. This process is called as: