Genomics, Proteomics, and Metabolomics Flashcards
There are _________ bases of the human genome, but only _________ - ________ protein-coding genes
3 billion bases
20K-25K protein-coding genes
Alternative _________ and alternative ____ ________ result in 4-6 different mRNAs from a single gene.
splicing & gene promoters
Alternative splicing and alternative gene promoters result in # - # different ______ from a single gene
4-6 mRNAs from a single gene
The number of protein-coding mRNAs (____________) may be as large as #
transcriptome
100K
The original Human Genome Project used “________” and “_____” approaches for sequencing.
clone-by-clone
shotgun
There are ______ gaps remaining in the Human genome (compared to 150,000 in draft)
250
Since the completion of the human genome, sequencing capacity has increased dramatically while costs have declined.
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SNPs or __________ __________ ____________ are mapped base positions in the genome where the nucleotide varies among people.
single nucleotide polymorphisms
Companies (e.g. 23 and me) are offering full genome scans to people for less than $100. This analysis is based on
SNP - single nucleotide polymorphisms
Chromosomal Microarray Analysis (CMA) can be used for prenatal screening for early detection of chromosomal defects. What is it exactly?
Labeled DNA hybridized to array of several million oligonucleotide on chips.
______________ = complement of mRNAs, containing protein-coding sequences, but there are also other RNAs produced that play structural or regulatory functions (miRNA, siRNA, etc.)
Transcriptome
The transcriptome can be studied using ________, a collection of complementary (cDNA) made from mRNA or ______ ________ arranged on a solid phasae slide in a defined order.
microarrays
synthetic oligonucleotides
Generally, several ________ _____ per gene are used in microarrays.
oligonucleotide probes
Two samples can be compared by labeling each with a different fluorescent dye and ___________ them to the same array. (e.g. Two-color arrays can compare normal and cancer cells.)
hybridizing
With advances in sequencing technology, RNAseq or sequencing the entire compliment of RNA in a sample is rapidly replacing microarray approaches
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