The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the corresponding bones in whales have very different shapes and proportions. However, genetic data suggest that all three kinds of organisms diverged from a common ancestor at about the same time. Which of the following is the most likely explanation for these data?

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#Question id: 790

#Unit 1. Molecules and their Interaction Relevant to Biology

Presence of a series of 3 G-C pairs in the anticodon arm of initiator fmet tRNA is essential for

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#Question id: 12424

#Unit 10. Ecological Principles

The logistic model predicts a population growth curve that approximates the shape of a(n)

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#Question id: 2668

#Unit 2. Cellular Organization

The toxic shock syndrome toxin is produced by some Salmonella species when there is not sufficient iron present. When iron is present, it prevents transcription of the TSS-toxin gene. Iron therefore serves as __________.

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#Question id: 26435

#Unit 3. Fundamental Processes

The eukaryotic MutS/L system is particularly important for repairing errors caused by

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#Question id: 6543

#General Aptitude

What is the next number in the following sequence :

2,3,5,6,3,4,7,12,4,5,9......