Question : 11) What distinguishes the field of genomics from geneticsc : 2134294
11) What distinguishes the field of genomics from genetics?
A. Genomics deals with genomes; genetics deals with gene products.
B. A goal of genomics is to understand how genes influence both genotype and phenotype; genetics only considers how genes influence phenotype.
C. Genomics is based almost solely on studies of human genome sequences; genetics is based on studies of organisms from bacteriophage to Arabidopsis.
D. Genomics is based on DNA sequence analysis and considers the sequence, function and interactions of many genes; genetics more often considers one or a small number of genes at a time and is generally involved in the passage of hereditary traits from one generation to the next.
12) All of the following apply to the discipline of bioinformatics except:
A. Bioinformatics is a synonym for genomics.
B. The most commonly used bioinformatics tool is BLAST.
C. Bioinformatics is an area of computer science devoted to to collecting, organizing and
analyzing DNA and protein sequences.
D. Bioinformatics tools support high-throughput screening methods for both proteomic and genomic research programs
13) What is the difference between an open reading frame (ORF) and a gene?
A. There is no difference.
B. An ORF is a potential gene identified by a potential protein-coding segment in DNA bordered by start and stop codons; a gene is a DNA segment known to produce a product.
C. An ORF is a known gene-containing DNA segment that is shorter than a full-length gene.
D. An ORF may or may not have introns; a gene must have introns.
14) Which best describes the logic behind shotgun sequencing?
A. Fragment the genome into short pieces. Sequence each piece. Use overlapping ends to assemble the pieces in the correct order.
B. Start with one end of each chromosome. Sequence straight through to the other end of the chromosome.
C. Use a variety of techniques to identify genes and open reading frames. Sequence these segments but not the noncoding and repeated sequences.
D. Fragment the genome into pieces. Map the location of each piece. Then sequence each piece.
15) What evidence do molecular biologists use to infer that a gene is part of a gene family?
A. Its sequence is almost exactly identical to that of a gene in another organism.
B. Its structure (meaning its pattern of exons and introns) is identical to that of a gene found in another species.
C. Its composition, in terms of percentage of A-T and G-C pairs, is unique.
D. Its sequence, structure, and composition are similar to those of another gene in the same genome.