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TLS Online TPP Program

#Question id: 5637

In an experiment, Sperm from mice carrying loss-of-function mutations in the Izumo gene. Which of the following statement is correct?

#Unit 5. Developmental Biology

  1. Sperm are not able to bind and penetrate the zona pellucida.

  2. Sperm are able to fuse with the egg cell membrane.

  3. Sperm are able to bind and penetrate the zona pellucida, but they are not able to fuse with the egg cell membrane.

  4. Sperm are able to bind and penetrate the egg jelly, but they are not able to fuse with the zona pellucida.

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TLS Online TPP Program

#Question id: 19217

#Unit 12. Applied Biology

The T-DNA is transferred as which type of molecule from the Ti plasmid, enters the plant cell.
TLS Online TPP Program

#Question id: 6635

#General Aptitude

Choose the group of letters which is different from others.
TLS Online TPP Program

#Question id: 12262

#Unit 10. Ecological Principles

The myxoma virus was introduced to Australia to control an outbreak of which of the following pests? 
TLS Online TPP Program

#Question id: 18382

#Unit 12. Applied Biology

Which bacterial enzyme has been transferred to Arabidopsis thaliana which can absorb mercury, and it reduces to volatile Hg from the leaf surface. 
TLS Online TPP Program

#Question id: 96

#Unit 1. Molecules and their Interaction Relevant to Biology

A reducing sugar is one that