Practice Questions

TLS Online TPP Program

#Question id: 4577

Which of these is a statement that Darwin would have rejected?

#SCPH05 I Biotechnology

Environmental change plays a role in evolution.
The smallest entity that can evolve is an individual organism.
Individuals can acquire new characteristics as they respond to new environments or situations.
Inherited variation in a population is a necessary precondition for natural selection to operate.

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TLS Online TPP Program

#Question id: 3711

#SCPH28 | Zoology

How many replisomes are required for one complete round of DNA replication in E. coli?

TLS Online TPP Program

#Question id: 2979

#I Life Science/ Life Sciences Group – I-V

Use the data in the accompanying table to answer the question. Minutes Spent in Cell Cycle Phases-

Cell type	G1	S	G2	M
Beta	18	24	12	16
Delta	100	1	0	0
Gamma	18	48	14	20

The data in the table were obtained from a study of the length of time spent in each phase of the cell cycle by cells of three eukaryotic organisms designated beta, delta, and gamma. What is the best explanation for the data associated with delta cells?

TLS Online TPP Program

#Question id: 1284

#SCPH06 I Botany

The collagen triple-helix domain is NOT:

TLS Online TPP Program

#Question id: 1568

#SCPH06 I Botany

which one of these is not a characteristics of B-cell?

TLS Online TPP Program

#Question id: 14832

#SCPH05 I Biotechnology

The characteristic virulence factor of S. pneumoniae is