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TLS Online TPP Program

#Question id: 5667

There may be an important connection between sperm translocation and capacitation. Which of the following option is correct explanation of above statement?

#Unit 5. Developmental Biology

  1. The influx of bicarbonate ions (and possibly other ions) alkalinizes the sperm, raising its pH.

  2. before entering the ampulla of the oviduct, the uncapacitated sperm bind actively to the membranes of the oviduct cells in the narrow passage (the isthmus) preceding it.  This binding is temporary and appears to be broken when the sperm become capacitated.

  3. The cholesterol efflux from the sperm cell membrane is thought to change the location of its “lipid rafts,” isolated regions that often contain receptor proteins that can bind the zona pellucida and participate in the acrosome reaction.

  4. Capacitation is a transient event but translocation is not

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TLS Online TPP Program

#Question id: 23405

#Unit 1. Molecules and their Interaction Relevant to Biology

Children should avoid smoking because
TLS Online TPP Program

#Question id: 23439

#Unit 1. Molecules and their Interaction Relevant to Biology

Pointing to a woman, Abhijit said, “Her granddaughter is the only daughter of my brother.” How is the woman related to Abhijit?
TLS Online TPP Program

#Question id: 23438

#Unit 1. Molecules and their Interaction Relevant to Biology

If A + B means A is the sister of B; A ×B means A is the wife of B, A%B means A is the father of B and A − means A is the brother of B. Which of the following means T is the daughter of P?
TLS Online TPP Program

#Question id: 23437

#Unit 1. Molecules and their Interaction Relevant to Biology

Veena who is the sister-in-law of Ashok, is the daughter-in-law of Kalyani. Dheeraj is the father of Sudeep who is the only brother of Ashok. How Kalyani is related to Ashok?
TLS Online TPP Program

#Question id: 23436

#Unit 1. Molecules and their Interaction Relevant to Biology

Pointing a photograph X said to his friend Y , “She is the only daughter of the father of my mother.” How X is related to the person of photograph?
TLS Online TPP Program

#Question id: 23435

#Unit 1. Molecules and their Interaction Relevant to Biology

Deepak said to Nitin, “That boy playing with the football is the younger of the two brothers of the daughter of my father’s wife.” How is the boy playing football related to Deepak?