In mammals, secondary neurulation begins at the level of the sacral vertebrae of the tail.

TLS Online TPP Program

#Id: 10162

#Unit 6. System Physiology – Plant

The biosynthesis of gibberellins is under strict genetic, developmental, and environmental control, and numerous gibberellin-deficient mutants have been isolated. 

Mendel’s tall/dwarf alleles in peas are a famous example. Such mutants have been useful in elucidating the complex pathways of gibberellin biosynthesis.

TLS Online TPP Program

#Id: 1836

#Unit 11. Evolution and Behavior

Jurassic- First birds and angiosperms

TLS Online TPP Program

#Id: 2879

#Unit 13. Methods in Biology

Instruments specifically designed to measure turbid samples are nephelometers or Klett meters. 

TLS Online TPP Program

#Id: 2192

#Unit 10. Ecological Principles

Sequential changes in community structure over physical distance, primarily influenced by time, constitute a chronosequence

TLS Online TPP Program

#Id: 10264

#Unit 6. System Physiology – Plant

DREB2A target genes are also induced by dehydration stress