The common edible frog of Europe is a hybrid between two species, Rana lessonae and Rana ridibunda. The hybrids were first described in 1758 and have a wide distribution, from France across central Europe to Russia. Both male and female hybrids exist, but when they mate among themselves, they are rarely successful in producing offspring. What can you infer from this information?

TLS Online TPP Program

#Question id: 345

#Unit 1. Molecules and their Interaction Relevant to Biology

As the [H₃O⁺] of the solution decreases, the [OH-] ________.

TLS Online TPP Program

#Question id: 5058

#Unit 5. Developmental Biology

 In the formation of vertebrate eye, optic vesicle and head ectoderm are-

TLS Online TPP Program

#Question id: 29482

#Unit 6. System Physiology – Plant

In the absence of gibberellin, the DELLA proteins

a) positively regulate GID1, GA20ox, and GA3ox

b)negatively regulate GA2ox

c) positively regulate GA2ox

d)negatively regulate GID1, GA20ox, and GA3ox

Which of the following is correct

TLS Online TPP Program

#Question id: 611

#Unit 1. Molecules and their Interaction Relevant to Biology

Which statement is false about the sequential theory of enzyme catalysis?

TLS Online TPP Program

#Question id: 4952

#Unit 11. Evolution and Behavior

Several scientific laboratories across the globe are involved in research concerning the origin of life on Earth. Which of these questions is currently the most problematic and would have the greatest impact on our understanding if we were able to answer it?