Nitrogen bases pair with bases that are _____.     a. Available b. Identical c. Complimentary d. None of the above   Which of the following is not present in the abdominal cavity? a. Spleen b. Stomach c. Rectum d. Liver   Based on the locations of centromeres, what type describes a centromere locates closely to one of the ends?     a. Telocentric b. Acrocentric c. Submetacentric d. Metacentric

Imagine a cell had a version of helicase that was permanently stuck at the origin of replication. Would this be considered a dominant negative mutant and why? Only one of the explanations below is correct (not counting the yes/no answer choice) O ..since it will prevent normal helicases from functioning. Yes... ...because there would be excess DNA replication. O..only if it was the only version of helicase in the cell. No... O ..because it is an inactive protein.

Explain each options

If a virus particle contained double-stranded B-DNA of 400,000 base pairs, A. How many complete helical turns would occur on each strand? B. How many atoms of phosphorus would be present? C. If the mole % of G in this genome is 17%, what is the mole % of A?