Ronald A. Fisher, John B. S. Haldane and Sewall Wright - which showed that mutation and natural selection together cause adaptive evolution.

TLS Online TPP Program

#Id: 7894

#XL - Q Biochemistry

The mtDNAs of most multicellular animals are approximately 16-kb circular molecules that encode intron-less genes compactly arranged on both DNA strands.

TLS Online TPP Program

#Id: 7053

#XL - T Zoology

Cope’s rule:  A proposed generalization that individual body size in animals tends to increase during evolution.

TLS Online TPP Program

#Id: 10003

#XL - T Zoology

Mice homozygous for a null allele of dhh exhibit defective spermatogenesis

TLS Online TPP Program

#Id: 7763

#XL - Q Biochemistry

Breaking a bond always require energy to be added to the molecule. Correspondingly, making a bond always releases energy.

TLS Online TPP Program

#Id: 9811

#XL - R Botany

A toggle model is for phytochrome interconversion

The structure of the b-hairpin region of Pr is changed to an a helix during the conversion of Pr to Pfr, which initiates other conformational changes in the protein.