The following are all adaptations to life on land except

TLS Online TPP Program

#Question id: 33452

#Unit 1. Molecules and their Interaction Relevant to Biology

For mixtures of nucleotides, a wavelength of 260 nm is used for absorption measurements for identification. Choose correct order of absorption spectra.

TLS Online TPP Program

#Question id: 2984

#Unit 2. Cellular Organization

Certain unicellular eukaryotes, including diatoms and some yeasts, have mechanisms of nuclear division that may resemble intermediate steps in the evolution of mitosis. Which of the following is a characteristic feature of nuclear division in these organisms?

TLS Online TPP Program

#Question id: 6990

#Unit 5. Developmental Biology

Insects such as Drosophila undergo three molts before becoming a pupa and undergoing metamorphosis. Molting, which is also called 'ecdysis', is controlled by what hormone?

TLS Online TPP Program

#Question id: 4569

#Unit 11. Evolution and Behavior

Which of the following must exist in a population before natural selection can act upon that population?

TLS Online TPP Program

#Question id: 4094

#Unit 3. Fundamental Processes

The accompanying figure depicts the map of a part of E. coli genome harboring the lac operon.

 lac mRNA would hybridize to which of the following DNA?

1) lac I; 2) lac 0; 3) lac Z; 4) lac Y; 5) lac A