Species I is diploid (2n  = 8) with chromosomes

AABBCCDD; related species II is diploid (2n = 8) with chromosomes MMNNOOPP. Individuals with the following sets of chromosomes represent what types of chromosome mutations?

A-   AAABBCCDD        B-   AABBCCDDMNOP

C-   AAABBCCDDD

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#Question id: 12498

#Unit 8. Inheritance Biology

In this pedigree II 1 is affected with an autosomal recessive disorder. The disease status for II 2 and II 3 is unknown. A and B represent alleles at a locus which is tightly linked to the disease locus with recombination fraction of 0. On the basis of the linked marker genotypes II 2 can be told that: 

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#Question id: 7086

#Unit 5. Developmental Biology

In mammalian development, Only trophoblast cells synthesize the transcription factor Cdx2, which:

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#Question id: 3804

#Unit 3. Fundamental Processes

DNA polymerase III is to prokaryotes as ________ is to eukaryotes.

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#Question id: 15337

#Unit 4. Cell Communication and Cell Signaling

HSCs express which type of cell-surface molecule, which is the receptor for stem cell factor (SCF). It is a cytokine that exists in both membrane-bound and soluble forms and the SCF-surface molecules interaction is critical for the development, in adult animals, of multipotential progenitor cells (MPPs).  Which type of surface molecules HSCs express?

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#Question id: 7243

#Unit 5. Developmental Biology

Match the following:

Column I	Column II
A. Anterior necrotic zone	I. Rapid apoptosis that occurs when epithelial cells lose their attachment to the extracellular matrix.
B. Anoikis	II. Devoid of any neural innervation.
C. Aneurogenic	III. Mammalian equivalent to the chick hypoblast and similar to the head portion of the amphibian organizer, it creates an anterior region by secreting antagonists of Nodal.
D. Anterior visceral endoderm	IV. A zone of programmed cell death on the anterior side of the developing tetrapod limb that helps shape the limb.