Practice Questions

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#Question id: 3827

It takes about the same amount of time for eukaryotic chromosomes to be replicated in vivo as it does for E. coli. Why is this true?

#Unit 3. Fundamental Processes

Eukaryotes have multiple origins of replication; E. coli has one unique origin.
Most chromosomes are approximately the same size.
Eukaryotic replication occurs at a faster rate, enabling replication of the larger chromosomes in about the same amount of time.
The replication of DNA in eukaryotes is faster due to a quicker, more accurate repair of mismatches

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TLS Online TPP Program

#Question id: 16121

#Unit 7. System Physiology – Animal

Match the following mechanisms (Column I) with their correct example (Column II).

Column I	Column II
A. Heat-generating and heat-retaining mechanisms	i. increased metabolic rate (thyroid hormones, sympathetic nervous system)
B. Heat-dissipating mechanisms	ii. vasodilation of blood vessels of the skin (decreased sympathetic tone)
	iii. increased activity of sympathetic cholinergic fibers to sweat glands.
	iv. shivering
	v. vasoconstriction of blood vessels of the skin (increased sympathetic tone)

TLS Online TPP Program

#Question id: 28600

#Unit 2. Cellular Organization

Which of the following conditions is allowing substrates to access the active site of the CDK?

TLS Online TPP Program

#Question id: 19149

#Unit 13. Methods in Biology

The GC trace obtained after an experiment is called a

TLS Online TPP Program

#Question id: 5818

#Unit 8. Inheritance Biology

How does recombinational repair differ from nucleotide excision repair (NER)?

TLS Online TPP Program

#Question id: 28289

#Unit 5. Developmental Biology

which of the following enzyme that cleaves the proteins linking the vitelline envelope to the cell membrane ?