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TLS Online TPP Program

#Question id: 28776

Which of the following statements is incorrect about actin molecules?

#Unit 2. Cellular Organization
  1. It is a basic building block of microfilaments
  2. It exists as a globular monomer -G-actin and filamentous polymer-F-actin
  3. 3 isoforms of actin molecules α, β and γ
  4. α - expressed only non-muscle cells while β and γ - found together in almost all muscle cells
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TLS Online TPP Program

#Question id: 28308

#Unit 5. Developmental Biology

Capacitated mammalian sperm has the capacity to sense thermal differences such as
TLS Online TPP Program

#Question id: 28309

#Unit 5. Developmental Biology

Which of the following chemotactic factor is secreted by oocyte and its cumulus cells that involve to attract capacitated sperm toward the egg during the last stages of sperm migration?
TLS Online TPP Program

#Question id: 28310

#Unit 5. Developmental Biology

In case of mouse cumulus cells secrete a substance that attracts sperm and hyperactivates them through CatSper channels, these substance is___ 
TLS Online TPP Program

#Question id: 28311

#Unit 5. Developmental Biology

zona pellucida is made of glycoproteins, Which of the following zona pellucida or ZP protein is differentiating between mouse and human?  
TLS Online TPP Program

#Question id: 28312

#Unit 5. Developmental Biology

 Mammalian egg have pathways for accepting both (heterogeneous population) types of capacitated sperm acrosome-intact sperm as well as acrosome-reacted sperm, sperm with intact acrosomes become bound to ___
TLS Online TPP Program

#Question id: 28313

#Unit 5. Developmental Biology

During acrosome-reacted sperm pathway sperm that have undergone the acrosome reaction bind directly to which of the glycoprotein?