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

Mode of nurition, What mode of nutrition did lizard exihbite

What mode of nutrition did lizard exihbite

What is the aim of milling, What is the aim of milling The aim of milli...

What is the aim of milling The aim of milling (the process including crushing and grinding) is to obtain preferentially a flour, in which the constituents of the endosperm cell

Anaphase of karyokinesis, There is no splitting of the centromere. The ...

There is no splitting of the centromere. The kinetochore fibers contract and the spindle or pole fibers elongate , As a result homologous chromosomes of each pair rather than

Headache associated with neurological diseases, Headache Associated with Ne...

Headache Associated with Neurological Diseases Headache is a symptom of many nervous system disorders, usually resulting from the distortion of pain sensitive structures. Commo

Enumerate about the visual field examination, Visual Field Examination ...

Visual Field Examination Russel et. al include a formal visual field examination using a parameter as part of their assessment procedure. Tests in the expanded version include

Rna molecule have two polynucleotide chains like the dna, Q Does RNA molecu...

Q Does RNA molecule have two polynucleotide chains like the DNA? Only DNA has two polynucleotide chains. The RNA is formed by just one polynucleotide chain.

Arthropods, what are the general characteristics of arthropods?

what are the general characteristics of arthropods?

Defination of behaviour change communication, Q. Defination of Behaviour Ch...

Q. Defination of Behaviour Change Communication? Behaviour Change Communication (BCC) is an interactive process with communities to develop specific messages and methods using

Divisions and representing species of the gymnosperms, Q. What are the majo...

Q. What are the major divisions and representing species of the gymnosperms? This group of plants can be separated into conifers (pine, sequoia, cypress), that have flowers cal

What are the types of antigenic agents, Q. What are the types of antigenic ...

Q. What are the types of antigenic agents that may constitute vaccines? Vaccines can be constituted of dead agents of disease, of inactivated toxins, of inactivated agents of d

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