Data, collected from DNAs of a great many different species, led Chargaff to the following conclusions:

A. The base composition of DNA generally varies from one species to another.

B. DNA specimens isolated from different tissues of the same species have the different base composition.

C. The base composition of DNA in a given species changes with an organism’s age, nutritional state, or changing environment.

D. In all cellular DNAs, the sum of the purine residues equals the sum of the pyrimidine residues.

Which of the above statements are INCORRECT regarding Chargaff’s rule?

TLS Online TPP Program

#Question id: 12411

#Unit 10. Ecological Principles

Plant population age pyramids

TLS Online TPP Program

#Question id: 12412

#Unit 10. Ecological Principles

In most mammalian populations the sex ratio

TLS Online TPP Program

#Question id: 12413

#Unit 10. Ecological Principles

Mortality rate is calculated as

TLS Online TPP Program

#Question id: 12414

#Unit 10. Ecological Principles

On a life table lx represents the ______ and ex represents ______.

TLS Online TPP Program

#Question id: 12415

#Unit 10. Ecological Principles

A dynamic life table

TLS Online TPP Program

#Question id: 12416

#Unit 10. Ecological Principles

A type I survivorship curve describes a population that has relatively