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

Cryo preserved allografts -surgical techniques, Cry o Preserved Allograf...

Cry o Preserved Allografts (Homograft) :  As these are not mounted, a free hand suturing in two layers has to be done. The valve is thawed by protocol. The septal muscle i

#organisation of the human bodytitle.., dhow is the structure of connective...

dhow is the structure of connective tisse linked to their function

Write the meaning of hyperglycemia, Q. Write the meaning of Hyperglycemia? ...

Q. Write the meaning of Hyperglycemia? Hyperglycemia is a Greek term: hyper -meaning excessive; glyc - meaning sweet; and emia- means "of the blood". It is a condition in whic

What are the benefits of diet modification, Benefits of diet modification a...

Benefits of diet modification are: 1) Control of sugar. 2) Control of weight. 3) Control of blood pressure. 4) Control of lipid profile. 5) Good health and well bei

What is dip stick test, What is Dip Stick Test It is a rapid method of ...

What is Dip Stick Test It is a rapid method of detection of Ketone bodies which you can perform easily. Plastic strips impregnated with a buffered mixture of sodium nitropru

Phylum protozoa, Make a detailed study on phylum protozoa taking an example...

Make a detailed study on phylum protozoa taking an example with clear labeled diagram

Neutralize acid rain because water is buffered, Select all that are true or...

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

Expression, To "express" a gene is to make it to function properly. A gene ...

To "express" a gene is to make it to function properly. A gene which encodes a protein will, when expressed, be transcribed or translated to produce that particular protein. A gene

Inorganic and organic substances, Q. Living beings are made of inorganic an...

Q. Living beings are made of inorganic and organic substances. According to the molecular complexity how can each of those substances be classified? Inorganic substances, mole

What is oxygen-haemoglobin dissociation curve, What is oxygen-haemoglobin d...

What is oxygen-haemoglobin dissociation curve? Explain the role of red blood cells in the transport of oxygen and carbon dioxide by blood. Briefly describe the principle, pr

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