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: 5651

#XL - R Botany

Growth and development of plant parts involves ________.

I) cell division to produce new cells

II) enlargement and elongation of cells

III) specialization of cells into tissues

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#Question id: 15702

#XL - S Microbiology

Following are few sterilization techniques and materials used in plant tissue culture. Identify the correct combinations.

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#Question id: 16832

#General Aptitude

Which figure is a rotation of the object?

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#Question id: 8718

#XL - S Microbiology

Which of the following would, if it had acted upon a gene, prevent this gene from acting as a reliable molecular clock?

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#Question id: 1727

#XL - Q Biochemistry

Which of the following statements is TRUE of CD4?