Explain about cesium-chloride gradients, Biology

Assignment Help:

Matthew Meselson and Frank Stahl grew bacteria in media having either N14 or N15 for various numbers of cell divisions. DNA from the bacterial samples were isolated and spun within an ultracentrifuge. The differing distances travelled by the several DNA samples by the cesium-chloride gradients indicate which of the following?

A. DNA polymerase will read the template strand in the 3' to 5' direction and synthesize the new strands in the 5' to 3' direction. 

B. During the cell cycle DNA will oscillate among states of de-condensation (S phase) and condensation (prophase thru anaphase)

C. The genome is comprised of double stranded DNA while mRNA is single stranded.  

D. DNA replication is a semi-conservative process in which the parental strands serve as templates for the synthesis of new strands.  

 


Related Discussions:- Explain about cesium-chloride gradients

The neural impulse is transmitted along the axon, What is the mechanism by ...

What is the mechanism by which the neural impulse is transmitted along the axon? The neural impulse is transmitted with the neuronal membrane through depolarization of consecu

Elaboration of yolk- reproduction, Normal 0 false false fal...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Difference between vertebrate - invertebrates nervous system, Q. What are s...

Q. What are some major differences of the vertebrate nervous systems comparing to invertebrates? In vertebrates the nervous system is well-characterized, having dorsal neural c

Mitral valve replacement, Mitral Valve Replacement :  When mitral...

Mitral Valve Replacement :  When mitral valve replacement for a calcified, stenotic valve is done, usually it is a classical procedure removing leaflets, their chordae an

Hypertensive emergencies, Hypertensive emergencies should be treated within...

Hypertensive emergencies should be treated within one hour. Hypertensive urgencies may be treated more slowly. The term accelerated malignant hypertension is used when retinal haem

Explain crossing over in genetics, Explain Crossing Over in genetics? C...

Explain Crossing Over in genetics? Crossing over is when the arms of homologous chromosomes exchange segments (and therefore genes) with each other. Recall that one of the homo

Special anatomic considerations in posterior maxilla, What are the special ...

What are the special anatomic considerations in posterior maxilla?  Posterior maxilla has very poor  quality of bone demanding special consideration in implant placement. These

Biotechnology, How does bisulfite sequencing work ?

How does bisulfite sequencing work ?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd