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

What do you mean by osteichthyes and condrichthyes, Q. From which features ...

Q. From which features do osteichthyes and condrichthyes get these names? "Chondros" means cartilage, "ictis" means fish (both from the Greek) the name chondrichtians is for fi

What is a recessive gene, What is a recessive gene? With the birth of a...

What is a recessive gene? With the birth of a child, it gets its genes from both parents. Some genes 'override' other genes. Using hair color as instance: If single parent i

Discuss the presence and occurrence of lactase persistence, Lactase non-per...

Lactase non-persistence is an example of a genetic trait that has been influenced by cultural factors.Domestication of animals by humans began approximately 10  000 years ago. Farm

Flaws in developmen of human, Flaws in Developmen of Human The human ...

Flaws in Developmen of Human The human growth and development in spite of its complexity works perfectly most of the time. But while development goes awry it creates a giant

Why is photosynthesis referred to as a biochemical pathway, a) Why is it si...

a) Why is it significant that ions being transported across a cell membrane be shielded from the interior of the lipid bilayer? b) Why is photosynthesis referred to as

Phyla of protists, 1 list the names of the phyla of animalike protists that...

1 list the names of the phyla of animalike protists that have only free-living members

Explain pulmonary capillary wedge pressure, Q. Explain Pulmonary Capillary ...

Q. Explain Pulmonary Capillary Wedge Pressure? The PCW waveform is similar to LA pressure waveform except that it is damped and delayed due to transmission through the lungs. T

Explain genetic relatedness of the aid-giver, Aid-giving behaviour between ...

Aid-giving behaviour between genetically related individuals in animal groups is often observed in nature. This aid-giving behaviour can evolve when the advantages of helping relat

Infectious laryngotracheitis, I nfe c tio u s laryngotracheitis It...

I nfe c tio u s laryngotracheitis It is a slow, laterally spreading respiratory disease of chickens, pheasants, peafowl and turkeys caused by a herpes virus with high morb

Correct regarding a buffer, Select all that are true or correct regarding a...

Select all that are true or correct regarding a buffer: alternately donating and accepting ions a set of chemicals that work together to resist pH change often a weak acid or base

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