Which mechanism helps prevent errors during DNA replication? ОА
Helicase enzymes unzip DNA to begin the process.
B
Each nucleotide only pairs with one other nucleotide.
С
DNA has a backbone made from alternating phosphate groups.
D
There are double and triple hydrogen bonds holding nucleotides together.

The health, management and conservation of biodiversity, is a challenge facing ecosystems worldwide. the major factors that affect the health and function of the great barrier reef are climate change and pollution. which question investigates the effects of a biotic factor on the reef ecosystem?

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

Some technological solutions to problems like global warming meet the specific needs and situations of local communities. an example from india involves converting the solid waste from cattle into clean-burning fuel for cooking. this reduces the amount of greenhouse gases, specifically methane and carbon dioxide, released into the environment from wood fires. when evaluating the feasibility of implementing this solution, computer models are used to weigh costs against benefits. what factor is least likely to impact the decision on adopting this technology?