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 phycobilins.
It is rich in beta-carotene.

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

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

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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

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

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