Crossing-over involves the exchange of genetic information between

a. rna strands.

b. sex chromosomes.

c. non sister chromatids.

d. different genes.

Three chemical differences between DNA and RNA

What may happen as sediment and decaying organisms build up in a pond? a. The pond may become a lake. c. The water may have more salt. b. More fish may live in the pond. d. The pond may become a forest.

The unit "GtC" is used throughout the lab and stands for gigatonnes of carbon. What is one GtC equal to? A: one billion kilograms of carbon B: one hundred kilograms of carbon C: one thousand kilograms of carbon D: one trillion kilograms of carbon

State the 3 components of the cell theory.

3. Explain what the difference is between an oxygen atom and an oxygen molecule.

Which property allows objects that do not produce their own light to be seen

What is an example of recombinant dna technology?

How many chromosomes do humans with down syndrome have?

Which trophic level has the least amount of energy available for the next highest trophic level? a. secondary consumerb. omnivorec. decomposerd. producer

What is an acquired trait?