Analysis of the genome and transcriptome of the highly radiation resistant bacterium Deinococcus radiodurans has revealed all of the following EXCEPT
A. genes whose products are involved in DNA replication and recombination are dramatically up-regulated after irradiation.
B. genes whose products are involved in cell wall metabolism and cellular transport are dramatically up-regulated after irradiation.
C. it has more DNA repair genes than E. coli.
D. its genome consists of two circular chromosomes and two plasmids.
Answer: C
You might also like to view...
The best explanation for the phenotypic differences between humans and chimps despite the great similarities in their gene-coding sequences is
A. the vast differences in exons between their genomes. B. the vast differences in the introns between their genomes. C. the "junk" DNA of humans contains important sequences not present in chimps. D. differences in gene expression between species.
A shift from expected allele frequencies, resulting from chance, is known as
a. natural selection. b. genetic drift. c. mutation. d. gene flow.
Which of the following material would NOT normally be filtered from the blood at the glomerulus?
a) water b) urea c) protein d) glucose e) sodium ions
Which one of the following is true of your mRNA?
A. The mature mRNA is produced directly from DNA. B. A pre-mRNA is produced directly from DNA, and then a mature mRNA is created by the removal of introns. C. A pre-mRNA is produced directly from DNA and then a mature mRNA is created by the removal of exons. D. DNA is produced directly from mRNA.