Does Cnidaria Have Tissues?
Yes, Cnidarians have a tissue level of organisation. Cells performing the same function are arranged as tissues. Their body is... View Article
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Are All Cnidaria Aquatic?
The phylum Cnidaria contains aquatic animals and mostly marine. They are free-swimming or sessile. Examples are sea anemone, hydra, jellyfish,... View Article
What Is Phylum Cnidaria?
Phylum Coelenterata is also known as Cnidaria. They are diploblastic, radially symmetrical with tissue level of organisation. They are characterised... View Article
Does the Hypothalamus Control Hunger?
Yes, the hypothalamus controls hunger. It controls the urge for eating and drinking. It lies at the base of the... View Article
Is Cloning Considered Asexual?
Yes, cloning is considered the asexual method of reproduction because fertilisation of gamete doesn’t take place and the offspring is... View Article
How Is DNA Inserted Into a Vector?
The DNA fragment having the desired gene and the vector are first cut by restriction enzyme and then DNA and... View Article
Why Fragments Of Different Sizes Cannot Be Separated By Standard Electrophoresis?
Like ion-exchange chromatography, Electrophoresis is a procedure that uses differences in the electrical charges to separate the molecules in a... View Article
What Can Modify DNA Molecules?
There are several enzymes modifying the DNA molecules by elimination or addition of particular chemical groups. Some essential ones are... View Article
What Are The Two Different Types Of Nucleases?
Nucleases degrade the molecules of DNA by disintegrating the phosphodiester bonds which associate one nucleotide with the adjacent one in... View Article
How To Group The DNA Manipulative Enzymes?
Based on the type of reaction which it catalyzes, the DNA manipulative enzymes can be classified into 4 main classes... View Article
What Is The Aim Of Plasmid Amplification?
The main aim of amplification is to increase the copy number of a plasmid. Some multicopy plasmids have the beneficial... View Article
How To Purify DNA From Cell Extract?
Bacterial cell extract has good quantities of RNA and protein. Several methods can be used to purify DNA from such... View Article
What Are The Four Stages For DNA Preparation From A Culture Of Bacterial Cells?
The process for the total DNA preparation from a culture of a bacterial cell can be categorized into four stages... View Article
Why Are Complementary Single Strands Called Sticky Ends?
Often, the complementary single strands are referred to as cohesive ends or ‘sticky’ ends. This is because the base pairing... View Article
How Is Lysogenic Infection Characterized?
As opposed to the lytic cycle, lysogenic infections are characterized by the retention of the phage DNA molecules in the... View Article
What Is The Three-step Process Of The Phage Infection Cycle?
The typical infection pattern (same for all phage types) is a three-step process: Phage substances bind to the exterior of... View Article
How Are Plasmids Classified?
Plasmids, based on the prime characteristic coded by the plasmid genes, can be classified into the following types: R or... View Article
What Are Conjugative And Non-conjugative Plasmids?
Plasmids can be categorized as conjugative and nonconjugative. These conjugative plasmids are distinguished by their ability to facilitate sexual conjugation... View Article
What Is Copy Number In Plasmids?
Copy number and size of a plasmid are particularly important as far as cloning is concerned. Copy number is the... View Article
What Are The Factors Implicated In Mutagenesis?
Following are the factors implicated in mutagenesis – Defective DNA repair – there would be serious consequences in the event... View Article
