Heterochromatic regions, silenced genes, and gene-sparse regions of chromosomes are typically localized to the.

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#Question id: 11395

#Unit 9. Diversity of Life Forms

Mitochondria are thought to be the descendants of certain alpha -proteobacteria. They are, however, no longer able to lead independent lives because most

genes originally present on their chromosome have moved to the nuclear genome. Which phenomenon accounts for the movement of these genes?

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#Question id: 1162

#Unit 4. Cell Communication and Cell Signaling

Diacylglycerol (DAG) formation aids in cell signaling by:

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#Question id: 15906

#Unit 5. Developmental Biology

Which of the following is the switch gene for sex determination?

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#Question id: 5051

#Unit 5. Developmental Biology

fter the 8-cell stage, the mammalian embryo develops an outer layer (which becomes the fetal portion of the placenta), and an inner cell mass that generates all the cells of embryo. The cells of the inner cell mass are thus said to be-

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#Question id: 4482

#Unit 3. Fundamental Processes

The General Transcription Factors of RNA Polymerase, with their subunits, select correct matching

A.     TBP	1
B.     TFIA	11
C.     TAFs	2
D.     TFIIH	10