Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 5421
TLS Online TPP Program

#Question id: 5683

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.

More Questions
TLS Online TPP Program

#Question id: 12735

#Unit 13. Methods in Biology

Match the following:
A. Maize                                  i. Modified seed storage protein
B. Tomato                              ii. Modified ripening
C. Canola                                 iii. Resistance to insects
D. Soya Bean                         iv. Seed oil modification
TLS Online TPP Program

#Question id: 12736

#Unit 13. Methods in Biology

Match the following:
1. Emphysema                                                    i.  Fibroblasts
2. Immune System Disorder                        ii.  HPRT cLesch-Nyhan syndrome                           iv. T and B cells
TLS Online TPP Program

#Question id: 12737

#Unit 13. Methods in Biology

 Name the technique which is used to detect abnormalities at an early stage.
TLS Online TPP Program

#Question id: 12738

#Unit 13. Methods in Biology

Match  the following:
1. Growth Factors                                                    i. GTPase
2. Protein kinases                                                    ii. PDGF
3. G- Proteins                                                           iii. DNA binding protein
4. Nucleus located transcription factors      iv.Serine Kinases
TLS Online TPP Program

#Question id: 12739

#Unit 13. Methods in Biology

Method used for gene editing and for the development in Gene modifications is known as_______.
TLS Online TPP Program

#Question id: 12740

#Unit 13. Methods in Biology

Choose the incorrect statement for Agglutination.