TLS Online TPP Program

#Question id: 2195


Which of the following statements about the mobility of membrane components is true?

#XL - S Microbiology
  1. Proteins and lipids move equally rapidly within the plane of the membrane.

  2. Lipids generally move more rapidly than proteins within the plane of the membrane.

  3. Proteins generally move more rapidly than lipids within the plane of the membrane.

  4. Lipids and proteins “flip-flop” between membrane leaflets more readily than they move within the plane of the membrane.

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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

TLS Online TPP Program

#Question id: 9617

#XL - R Botany

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

TLS Online TPP Program

#Question id: 9618

#XL - S Microbiology

Generally, within a lineage, the largest number of shared derived characters should be found among two organisms that are members of the same

TLS Online TPP Program

#Question id: 9618

#XL - R Botany

Generally, within a lineage, the largest number of shared derived characters should be found among two organisms that are members of the same