TLS Online TPP Program

#Question id: 19862


The wavelength of a spectral line for electron transition is inversely related to

#XL - P Chemistry
  1. Z (nuclear charge)
  2. velocity of electron
  3. number of electrons undergoing transition
  4. the energy difference between the energy levels involving transition
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TLS Online TPP Program

#Question id: 9614

#XL - R Botany

Some molecular data place the giant panda in the bear family (Ursidae) but place the lesser panda in the raccoon family (Procyonidae). Consequently, the morphological similarities of these two species are probably due to

TLS Online TPP Program

#Question id: 9615

#XL - S Microbiology

In angiosperm plants, flower morphology can be very intricate. If a tree, such as a New Mexico locust, has flowers that share many morphological intricacies with flowers of the sweet pea vine, then the most likely explanation for these floral similarities is the same general explanation for the similarities between the

TLS Online TPP Program

#Question id: 9615

#XL - R Botany

In angiosperm plants, flower morphology can be very intricate. If a tree, such as a New Mexico locust, has flowers that share many morphological intricacies with flowers of the sweet pea vine, then the most likely explanation for these floral similarities is the same general explanation for the similarities between the

TLS Online TPP Program

#Question id: 9616

#XL - S Microbiology

Which mutation should least require realignment of homologous regions of a gene that is common to several related species?

TLS Online TPP Program

#Question id: 9616

#XL - R Botany

Which mutation should least require realignment of homologous regions of a gene that is common to several related species?

TLS Online TPP Program

#Question id: 9617

#XL - S Microbiology

The common ancestors of birds and mammals were very early (stem) reptiles, which almost certainly possessed 3-chambered hearts (2 atria, 1 ventricle). Birds and mammals, however, are alike in having 4-chambered hearts (2 atria, 2 ventricles). The 4-chambered hearts of birds and mammals are best described as