Identify the structure shown

 

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#Question id: 18945

#Unit 13. Methods in Biology

PCR can be used to generate single-stranded copies of a DNA sequence; this is called

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#Question id: 10930

#Unit 7. System Physiology – Animal

A 34-year-old man with schizophrenia has had chronic fatigue for 6 months. He has a good appetite, but has refused to eat vegetables for 1 year because he hears voices saying that vegetables are poisoned. His physical and neurological examinations are normal. His hemoglobin level is 9.1 g/dL, leukocyte count is 10,000/μl3, and MCV is 122. Which of the following is the most likely diagnosis?

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#Question id: 14708

#Unit 5. Developmental Biology

Difference between gastrulation in Xenopus and sea urchin;

I. In Xenopus, formation of blastopore: mesoderm and endoderm move inside by involution over blastopore lip.

II. In sea urchin, formation of blastopore: mesodermal cells migrate into the interior; endoderm moves inside by invagination of the epithelial sheet.

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#Question id: 1283

#Unit 4. Cell Communication and Cell Signaling

Which one of the following is NOT a property of perlecan?

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#Question id: 4580

#Unit 11. Evolution and Behavior

In modern terminology, diversity is understood to be a result of genetic variation. Sources of variation for evolution include all of the following except