Recombinant DNA Technology
Why is golden rice pale yellow in color?

It is rich in chlorophyll a.
It is rich in chlorophyll b.
It is rich in beta-carotene.
It is rich in phycobilins.

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Recombinant DNA Technology
Some genetic diseases cannot be diagnosed by changes in restriction sites. Some of these can be detected by allele-specific oligonucleotide probes. These are

copies of the gene with an altered sequence so that a restriction site is inserted
short sequences that will hybridize only to a specific base sequence
PCR-amplified variable numbers of tandem repeats (VNTRs)
mutagenized copies of a gene

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Recombinant DNA Technology
Isoschizomers recognize

same recognition site and different recognition sequence
same recognition site and recognition sequence
same recognition sequence but different recognition site
different recognition site and different recognition sequence

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Recombinant DNA Technology
Which of the following is correct in terms of determination of location of genetic traits?

Restriction sites allow DNAs to be digested
Known protein coding sequences are too far apart to allow linkage determination for most new genes
Protein-coding genes are always associated with a restriction pattern
None of these

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