DNA fingerprints used as evidence in a murder trial look something like supermarket bar codes. The pattern of bars in a DNA fingerprint shows :A. the order of bases in a particular geneB. the order of genes along particular geneC. the exact location of a specific gene in a genomic libraryD. the presence of various-sized fragments from chopped-up DNA

DNA fingerprints used as evidence in a murder trial look something lik

1.	DNA fingerprints used as evidence in a murder trial look something like supermarket bar codes. The pattern of bars in a DNA fingerprint shows :A. the order of bases in a particular geneB. the order of genes along particular geneC. the exact location of a specific gene in a genomic libraryD. the presence of various-sized fragments from chopped-up DNA
Answer» Correct Answer - D

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Probes used in DNA finger-printing initiallyA. 19 base long oligonucleotideB. single stranded RNAC. minisatelliteD. all of the above
The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because ofA. Insertional inactivation of alpha-galactosidase in non-recombinant bacteriaB. Insertional inactivation of alpha-galactosidase in recombinant bacteriaC. Inactivation of glycosidase enzyme in recombinant bacteriaD. Non-recombinant bacteria containing beta-galactosidase
If an inheritable mutation is observed in a population at high frequency it is reffered to asA. LinkageB. DNA polymorphismC. Sequence annotationD. Expressed sequence tag
Lactose (Lac) operon is regulated by :A. Lac repressor onlyB. Lac repressor and CAP-cGMP complexC. Lac repressor and CAP-cAMP complexD. CAP-cAMP and CAP-c-GMP complex
According to the lac operon concept, which functional unit of the bacterial genetic material is responsible for suppressing the activity of the operator gene in the absence of lactose ?A. Promoter geneB. Regulator geneC. Structural geneD. Repressor protein
What does 'lac' refer to in what we call the lac operon ?A. catabolic induction allosteric inhibitionB. LactoseC. LactaseD. Lac insect
Genes that are involved in turning on or off the transcription of set of structural genes are called Or Functioning of structural genes is controlled byA. operator geneB. regulator genesC. reduntant genesD. polymorphic genes
In operon concept, the operator gene combines with :A. regulator gene to switch off structural gene transcriptionB. inducer to switch off structural gene transcriptionC. regulator protein to switch on structural gene transcriptionD. regulator protein to switch off structural gene transcription
Functioning of structural gene is controlled by:A. operatorB. ligaseC. promoterD. regulator gene
DNA sequences that code for protein are known as :A. intronsB. exonsC. control regionsD. intervening sequences

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