Sewage treatment processes result in the production of ________, which can be used to make electricity.
A. hydrogen gas
B. methane
C. carbohydrates
D. nitrates
Answer: B
You might also like to view...
In cancer cells one allele of the tumor suppressor gene p53 is frequently mutated so that the protein is inactive, not produced, or deleted
The other allele will usually have a normal sequence and the promoter remains intact but the gene is not expressed. Sequencing with sodium bisulfite modification of DNA can be used to detect which cytosines are methylated. If the cancer cell DNA is sequenced what would be the anticipated results? A. Cytosines in or near the promoter region will be methylated B. Cytosines in or near the promoter will not be methylated C. Cytosines in the coding region will have an increased mehtylation D. There will be no differences in the methylation pattern of the promoter of p53 from a cancer cell and a normal cell
Which of the following regions of the human brain is critically important for monitoring and controlling movements?
A. medulla oblongata B. cerebellum C. hypothalamus D. basal nuclei E. cerebral cortex
Which of the following occurs during meiosis?
A) Diploid nuclei with unpaired chromosomes are produced from haploid parent nuclei with paired chromosomes. B) Haploid nuclei with paired chromosomes are produced from diploid parent nuclei with unpaired chromosomes. C) Diploid nuclei with paired chromosomes are produced from haploid parent nuclei with unpaired chromosomes. D) Haploid nuclei with unpaired chromosomes are produced from diploid parent nuclei with paired chromosomes.
How many layers of vascular cambium will there be in the trunk of a 10-year-old tree?
A) one B) two C) ten D) thousands