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TLS Online TPP Program

#Question id: 5666

 When the extracellular side of the receptor binds resact, it activates latent guanylyl cyclase in the cytoplasmic side of the receptor. Active guanylyl cyclase causes the sperm cell to produce more cyclic GMP (cGMP), this compound_____

#Unit 5. Developmental Biology

  1. activates a calcium channel in the cell membrane of the sperm tail, allowing the influx of calcium ions (Ca2+).

  2. activates a sodium channel in the cell membrane of the sperm tail, allowing the influx of sodium ions (Na2+).

  3. activates a calcium channel in the cell membrane of the sperm tail, allowing the efflux of calcium ions (Ca2+).

  4. activates a sodium channel in the cell membrane of the sperm tail, allowing the efflux of sodium ions (Na2+).

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TLS Online TPP Program

#Question id: 28357

#Unit 5. Developmental Biology

 what is the function of the gene tudor (tud) & oskar (osk) and if it is mutated that leads to____
TLS Online TPP Program

#Question id: 12769

#Unit 10. Ecological Principles

Which of the following graphs refer to this equation? 
TLS Online TPP Program

#Question id: 4758

#Unit 8. Inheritance Biology

The allele l in human population is recessive lethal and x chromosome linked. If a female is heterozygous for l allele marries with normal male. What will be interpretation correct?
TLS Online TPP Program

#Question id: 3306

#Unit 11. Evolution and Behavior

Death feigning behaviour (i.e., pretending to be dead when attacked) is found in snakes and millipedes. This similarity in behaviour between snakes and millipedes is an example of
TLS Online TPP Program

#Question id: 12132

#Unit 10. Ecological Principles

Use the following diagram of a hypothetical food web to answer the following questions. The arrows represent the transfer of food energy between the various trophic levels.

Which letter represents an organism that could be a primary consumer?