IS MY FINAL EXAM I NEED HELP! The base pairs in a DNA strand are held together with hydrogen bonds. In what way would a cell be most affected if these were covalent bonds Instead?

A) The cell would need to make new DNA each time the strand was opened

B) The cell would only be able to open and close the DNA strand when it replicated.

C)The would have to take in and use more energy in order to break the covalent bonds.

D)The cell would need to replace the nitrogenous bases each time the DNA strand opened. d

Select all the correct answers. which statements fail to meet the requirements of a scientific claim? 1 even though evidence indicates that the solar system's planets follow elliptical paths, copernicus's model involving circular orbits is true. 2 the evidence supporting newton's laws of motion was accurate in newton's time, but the universe operates differently today. 3 flowers that reflect the most ultraviolet light are more likely to attract bees and other pollinators than flowers that reflect less ultraviolet light. 4 in the final 100 meters of a 10,000-meter race, an athlete's speed is more strongly related to anaerobic efficiency than to aerobic efficiency.

What best describes the structure of the declaration of independence?

Across of blue x blue (both heterozygous) would result in