Which of the following statement is the characteristic of prokaryotic genome:____
A. Contains multiple DNA replication origins.
B. Single chromosome, always circular.
Chromosomal DNA is always fixed to binding proteins. 染色体DNA和蛋白质固定地结合
D. Consists of numerous non-coding sequences.
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Which of the following is NOT the focus of human structural genomics:____
A. Genetic map
B. Transcription map
C. Physical map
D. Analysis of gene function
Which of the following is NOT the characteristic of eukaryotic genome:____
A. The genome of eukaryotes is much bigger than that of prokaryotes, with multiple replication origins, and the length of each replica is smaller in eukaryotes.
B. Somatic cell is usually the diploid cell with two copies of homologous genome.
C. The number of coding region is more than non-coding region.
D. The eukaryotic genes are usually discontinuous split genes consisting of exons and introns.
Which is correct about organelle genome:____
A. Several copies of the gene can be included in one organelle.
B. Consists of several chromosome.
Contains numerous short repeated DNA sequences.
DNA molecule in mitochondria and chloroplast is usually packaged with histones, to form chromatin structure.
Which of the following statement about a gene is NOT true:____
A. The whole DNA sequence responsible for synthesis of a functional protein or RNA molecule.
B. Polynucleotide sequence of DNA molecule that contains specific genetic information.
C. The minimal functional unit of genetic material.
D. The gene sequence consists of continuously arranged triplet codes.
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