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TLS Online TPP Program

#Question id: 123

Which would you expect for the fatty acyl chains of the membrane phospholipids of bacteria grown at low temperature?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. Proportion of unsaturated fatty acyl groups increases.

  2. Proportion of unsaturated fatty acyl groups decreases.

  3. No change in the proportion of saturated versus unsaturated acyl groups.

  4. More cholesterol is produced and is inserted between the fatty acyl chains of the membrane.

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TLS Online TPP Program

#Question id: 28211

#Unit 5. Developmental Biology

Morphogenetic determinant specifies cells in____
TLS Online TPP Program

#Question id: 28212

#Unit 5. Developmental Biology

Activin is a___
TLS Online TPP Program

#Question id: 28213

#Unit 5. Developmental Biology

Specification of different mesodermal cell types in the frog Xenopus laevis by activin, a paracrine factor of the TGF-beta family. Which of the following observation is correct at the high concentration of activin?
TLS Online TPP Program

#Question id: 28214

#Unit 5. Developmental Biology

Specification of different mesodermal cell types in the frog Xenopus laevis by activin, a paracrine factor of the TGF-beta family. Which of the following observation is correct at the slightly lower concentration of activin?
TLS Online TPP Program

#Question id: 28215

#Unit 5. Developmental Biology

In the frog (Xenopus laevis) a gradient of the paracrine factor activin, which of the following observation is correct at the lower concentrations of activin ?
TLS Online TPP Program

#Question id: 28216

#Unit 5. Developmental Biology

The cell retain stem cell niche and maintained their proliferative properties is referred to as___