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TLS Online TPP Program

#Question id: 2242

What two features of the structure of cholesterol make it somewhat amphipathic?

#Unit 2. Cellular Organization

  1. The single hydroxyl along with the hydrocarbon nature of the remainder of the molecule

  2. The long, branched hydrocarbon along with the four hydrocarbon rings

  3. The five methyl groups along with the hydrocarbon chain

  4. The three six-membered rings along with the single five-membered ring

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TLS Online TPP Program

#Question id: 31247

#Unit 5. Developmental Biology

Achondroplasia is caused by base-pair substitution mutation that converts:
TLS Online TPP Program

#Question id: 31248

#Unit 5. Developmental Biology

Specification of the digits is primarily dependent on the expression of:
TLS Online TPP Program

#Question id: 31249

#Unit 5. Developmental Biology

Sonic hedgehog in the ZPA activates Gremlin, which inhibits BMPs, thus promoting the:
TLS Online TPP Program

#Question id: 31250

#Unit 5. Developmental Biology

The dorsal-ventral polarity of the limb bud is determined by the:
TLS Online TPP Program

#Question id: 31251

#Unit 5. Developmental Biology

The regrowth of hair shafts from follicular stem cells in the hair bulge is an example of:
TLS Online TPP Program

#Question id: 31252

#Unit 5. Developmental Biology

In some species, adult structures can undergo dedifferentiation to form a relatively undifferentiated mass of cells that then redifferentiates during morphogenesis of the new structure. Such regeneration is characteristic of: