Practice Questions

TLS Online TPP Program

#Question id: 10324

Which of the following is not true of all horizontally oriented phylogenetic trees, where time advances to the right?

#XL - S Microbiology

Each branch point represents a point in absolute time.
Organisms represented at the base of such trees are ancestral to those represented at higher levels.
The more branch points that occur between two taxa, the more divergent their DNA sequences should be.
The common ancestor represented by the rightmost branch point existed more recently in time than the common ancestors represented at branch points located to the left.

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TLS Online TPP Program

#Question id: 4622

#XL - T Zoology

Catastrophism, meaning the regular occurrence of geological or meteorological disturbances (catastrophes), was Cuvierʹs attempt to explain the existence of

TLS Online TPP Program

#Question id: 13024

#XL - S Microbiology

Inset and the vector can be ligated if they are digested by a pair of –

TLS Online TPP Program

#Question id: 17217

#XL - T Zoology

Which of the following stress affects the body's structure and function Such as diseases, mobility problems?

TLS Online TPP Program

#Question id: 752

#XL - Q Biochemistry

The A260/A280 ratio of a double-stranded DNA sample can be used to assess its purity. The value for the pure DNA is ----------------