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TLS Online TPP Program

#Question id: 5678

Following process and their mechanism during fertilization in mammals.

 a. Rheotaxis

i.A sensing mechanism in which, the oocyte and its accompanying

cumulus cells secrete molecules that attract capacitated

sperm toward the egg during the last stages of sperm migration

b.  Chemotaxis

ii.It is a transient event, and sperm are given a relatively brief window of competence during which they can successfully fertilize the egg.

c.  Capacitation

iii.it is the ability to sense temperature difference and preferentially swim from cooler to warmer sites is found only in capacitated sperm.

d. Thermotaxis

iv.Sperm receive long-distance directional cues from the flow of liquid from the oviduct to the uterus and they will migrate against the direction of the flow—using CatSper calcium channels to sense calcium influx and monitor the direction of the current
     

Which of the following option is correct?

#Unit 5. Developmental Biology

  1. a-i, b-ii, c-iii, d-iv

  2. a-iv, b-i, c-ii, d-iii

  3. a-iv, b-iii, c-ii, a-i

  4. a-i, b-iii, c-ii, a-iv

More Questions
TLS Online TPP Program

#Question id: 1260

#Unit 4. Cell Communication and Cell Signaling

Which of the following statement regarding RTK/Ras pathway is incorrect?
TLS Online TPP Program

#Question id: 16105

#Unit 7. System Physiology – Animal

Which of the following is a human thermoregulatory response controlled by cholinergic sympathetic nerves?
TLS Online TPP Program

#Question id: 5467

#Unit 8. Inheritance Biology

Two varieties of maize averaging 25 and 125 inches in height, respectively, are crossed. The F1 progeny is quite uniform averaging 75 inches in height. Of the 500 F2 plants, the Shortest 2 is 25 inches and the tallest 2 are 125 inches. What will be number phenotype observe in F2 progeny and number of polygene contribute for that character respectively?
TLS Online TPP Program

#Question id: 1088

#Unit 4. Cell Communication and Cell Signaling

One of the major categories of receptors in the plasma membrane functions by forming dimers, adding phosphate groups, and then activating relay proteins. Which type does this?
TLS Online TPP Program

#Question id: 5827

#Unit 8. Inheritance Biology

Temperature sensitive mutants could result from what?