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: 6948

#5. Developmental Biology

Which of the following genes is expressed at the posterior margin of each parasegment

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#Question id: 6950

#5. Developmental Biology

In mammalian development, the embryo will form from which population of cells?

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#Question id: 6951

#5. Developmental Biology

In chick development, the cell movement during gastrulation is called:

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#Question id: 6952

#5. Developmental Biology

Which technique is commonly used for gene knock-out in mice?

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#Question id: 6953

#5. Developmental Biology

Maternal factors are:

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#Question id: 6954

#5. Developmental Biology

Between fertilization and the first cleavage division, actin filaments pull the cytoplasm of the frog egg toward the point of sperm entry in a process called: