Explain how proteomics is considered by some to be even more important than genome sequencing
What will be an ideal response?
ANSWER: There are limits to what genome sequencing can tell us about an organism. It has been said
by some that the genome sequences are like a dictionary; the dictionary can teach words, but
it doesn't teach how a language is used. The proteomics field seeks to determine how all of
the proteins expressed in a cell work together. This will help us understand how the cells
actually function and tell us which genes are being expressed and for what purpose. If the genome is a dictionary, then the proteome is a novel.
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What would form open channels that directly link the cytoplasms of adjacent cells?
a. gap junction b. adhering junction c. tight junction d. microvillus e. merocrine
Which of the following is NOT true concerning homologous chromosomes?
a. There are two of each kind. b. Each parent contributes one of each homologous pair. c. Most homologous chromosomes carry the same genes for the same traits. d. The number of homologous chromosomes is doubled in each generation. e. Homologous chromosomes pair up during early meiosis.
The concept that a set of three nucleotides specifies a particular amino acid provides the basis for
a. the one gene, one enzyme hypothesis. b. the one gene, one polypeptide hypothesis. c. the genetic code. d. biochemical reactions among nucleic acids. e. Mendelian genetics.
Which of the following is a challenge to using solar-generated electricity in places not connected to a power grid?
A- the reliance upon fossil fuels to power the system B- the generation of toxic fumes by the solar panel system C- the lack of efficient and inexpensive battery technology D- the limited supply of silicon to make the wafers used in solar panels.