TLS Online TPP Program

#Question id: 28447


 During induction anchor cell secrets a paracrine factor LIN-3 protein is similar to which of the following mammalian growth factor?

#Unit 5. Developmental Biology
  1. nerve growth factor (NGF)
  2. fibroblast growth factor (FGF) 
  3. epidermal growth factor(EGF)
  4. platelet- derived growth factor (PDGF)
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TLS Online TPP Program

#Question id: 33346

#Unit 2. Cellular Organization

Growth of an organism was monitored at regular intervals of times and shown in the graph below. Around what time is the rate of growth zero?


TLS Online TPP Program

#Question id: 7272

#Unit 5. Developmental Biology

Few statements regarding the role of disheveled (dsh) and beta-catenin in the development of sea urchin.

A. beta-catenin accumulates predominantly in the macromeres and somewhat in veg2 tier cells.

B. At the fourth cleavage disheveled and β-catenin, both of which are found in the cytoplasm and are inherited by the micromeres.

C. Treating sea urchin embryos with lithium chloride allows β-catenin to accumulate in every cell and transforms presumptive ectoderm into endoderm.

D. When β-catenin is prevented from entering the nuclei (i.e., it remains in the cytoplasm), the vegetal cell fates are specified, and the entire embryo develops as a ciliated ectodermal ball.

Which one of the following options represents a combination of correct statement?

TLS Online TPP Program

#Question id: 7296

#Unit 5. Developmental Biology

some of the following statements regarding to this experiment are given below. Which of the following statements is incorrect?

TLS Online TPP Program

#Question id: 2622

#Unit 2. Cellular Organization

The form of RNA polymerase that transcribes the glnA gene contains the

TLS Online TPP Program

#Question id: 28717

#Unit 2. Cellular Organization

Clathrin coated vesicle transport from____