Explain cosmid, Biology

Assignment Help:

Cosmid: The type of artificially constructed vector taken in use for cloning the 35-45 kb of DNA. These are plasmids carrying the phage l cos site (which permits packaging into l capsids), an origin of the replication and an antibiotic resistance gene. The plasmid of 40 kb is quite difficult to put into bacteria, but it can replicate once there. The cosmids, however, have the cos site, and hence can be packaged into l phage heads (the reaction which can be performed in vitro) to permit efficient introduction into the bacteria.


Related Discussions:- Explain cosmid

X and y chromosomes determine only sex characteristics, Do the genes of the...

Do the genes of the X and Y chromosomes determine only sex characteristics? Moreover sex genes the sex chromosomes have also autosomal genes, genes that codify several proteins

Botulism, B o tu l i s m It is a toxicity in chickens, turkeys, d...

B o tu l i s m It is a toxicity in chickens, turkeys, ducks and other aquatic birds caused by a bacterial toxin produced by anaerobic bacteria Clostridium botulinum mai

Explain six different genotypes, ABO blood groups in humans are controlled ...

ABO blood groups in humans are controlled by the gene I. It has three alleles - IA, IB and i. As there are three dissimilar alleles, six different genotypes are possible. How many

What is biosynthetic pathways, The intermediates in the cycle give precurso...

The intermediates in the cycle give precursors for various biosynthetic pathways. An instance is as given below: -  From citrate synthesis of fatty acids; -  Amino acid synth

Factors affecting normal blood sugar levels, Q. Factors Affecting Normal Bl...

Q. Factors Affecting Normal Blood Sugar Levels? Earlier in our discussion, we learnt that insulin is the most important factor responsible for normal blood sugar levels. Now we

Why do substances react with each other, Why do substances react with each ...

Why do substances react with each other? Chemical reactions occur due to the products of the reaction have less energy than the reactants (drive toward less energy). These reac

Evolutionary changes in humans, Evolutionary changes that occurred in human...

Evolutionary changes that occurred in humans are - Development of prominent chin. Increase in cranial capacity. Reduction of brow-ridges. Development of speech. Developme

How do bones grow, Q. How do bones grow? Bones form and develop through...

Q. How do bones grow? Bones form and develop through a process known as ossification. There are two types of ossification: endochondral ossification and intramembranous ossific

What are the main intraspecific ecological interactions, What are the main ...

What are the main intraspecific ecological interactions? The main harmonious intraspecific ecological interactions are colonies and societies. The major inharmonious intraspeci

Explain various types of microorganisms, Q. Various types of microorganisms...

Q. Various types of microorganisms? Microbes are single-cell organisms so tiny that millions can fit into the eye of a needle. They are the oldest form of life on earth. Micro

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