Wnt proteins are signaling molecules secreted from the cell and are modified by linkage of a:  

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#Question id: 12006

#Unit 10. Ecological Principles

Nitrogen is a major environmental pollutant of groundwater in many parts of the world. What is the major cause of this nitrogen accumulation in groundwater?

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#Question id: 5221

#Unit 11. Evolution and Behavior

Unequal crossing over during Prophase I can result in one sister chromosome with a deletion and another with a duplication. A mutated form of hemoglobin, known as hemoglobin Lepore, is known in the human population. Hemoglobin Lepore has a deleted set of amino acids. If it was caused by unequal crossing over, what would be an expected consequence?

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#Question id: 13098

#Unit 13. Methods in Biology

You are a scientist who is using genomics to currently study a new bacterial species that no one has ever studied before. The following sequence is a piece of DNA within the coding region of a gene that you have recently sequenced.

 

How many of the 6 potential open reading frames are actually open in this sequence shown above?

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#Question id: 28250

#Unit 5. Developmental Biology

The major motor protein of the flagellum of sperm is

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#Question id: 18621

#Unit 13. Methods in Biology

Variants of PCR has been devised to enhance efficiency are

a) qPCR with SYBR, TaqMan and MB

b) nested PCR

c) Touchdown start PCR

d) hot start PCR