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Topic :: Dna





Dna Interview Questions
Questions Answers Views Company eMail

Because of dna replication, two dna molecules come to existence. Why is not it correct to assert that two “new” dna molecules are created? What is the name given to the process concerning that fact?

1154

Why is not it correct to assert that dna self-replicates?

984

Does dna replication occur in cell division?

1042

What is the name of the dna duplication process? What is the main enzyme that participates in it?

1 1807

Concerning the nitrogen-containing bases that participate in nucleotides what is the difference between dna and rna.

942

Concerning their biological function what is the difference between dna and rna?

1073

How do the two complementary nucleotide chains of the dna facilitate the replication process of the molecule?

954

One characteristic of the dna molecule is its replication capability. What are the consequences of failures during dna replication?

994

Which type of chemical bond maintains the pairing of each chain in the dna molecule?

886

Into which two groups can the nitrogen-containing bases that form dna and rna be classified? What is the criterion used in that classification?

1014

According to the watson – crick model how many polynucleotide chains does a dna molecule has?

960

Is there any situation in which dna is made based on a rna template? What is the enzyme involved?

943

How microarrays are related to dna?

984

Explain microarrays. How are they related to dna?

953

What is the principle behind dna fingerprinting?

1078




Un-Answered Questions { Dna }

How DNA is being Transplanted?

2103


cancer cells have their dna wound back wards, is that true?

1947


Does unwinding DNA cause aging?

2137


Is Recombination in Human Mitochondrial DNA really possible?

2081


Why does RNA have 5 bases and DNA has only 4?

2173


A blastomere was removed from an 8-cell human embryo, and its beta-globin gene was amplified by PCR. The beta-globin DNA was treated with an enzyme that cuts on either side of and within the normal allele (producing a small fragment), but not within the sickle cell allele (producing a large fragment). Electrophoresis of the treated DNA from the blastomere demonstrated the presence of both a large and small fragment derived from the beta-globin genes. How should you interpret this test?

2031


How the positive and negative DNA markers are used in genetic engineering?

2211


DNA binding by proteins with the helix-turn-helix (HTH) motif does not involve a) altered stacking of the DNA at the center of symmetry. b) hydrogen bonds, salt bridges, and van der Waals contacts. c) interactions with base pairs in the major groove of DNA. d) interactions with the sugar-phosphate backbone of DNA.

2059


How to Insert Genomic DNA into yeast ?

2071


How to find a sequence of dna molecule?

2049


What is a DNA array?

2084


How can all organisms share the same 4 bases DNA and still be so diverse?

2648


what is the connection between a chromatid and a replicated DNA molecule?

2189


What is DNA computing ?

3127


How to extract DNA from semen (sperm)?

2827