The "backbone", or sides, of the dna molecule are made of

a. cytosine.

b. nitrogenous bases.

c. hydrogen bonding.

d. sugar and phosphate.

The latitudes in this biome have evenly distributed precipitation throughout the year.

What is the correct term for a large number of species in an ecosystem?

How the DNA is different from the cDNA?

Which resource takes the longest amount of time to renew? a hydroelectric power b solar power c natural gas d nuclear energy

Order the following terms from smallest to largest: genome, atoms, DNA, chromosomes, molecules, chromatids, nucleotide, gene

Hank likes to explore nearby streams during the summer. However, one winter there is a lot of rain near the stream. How might the stream change before the next summer? A. The stream will have dried up. B. The stream water will be shallower. C.

A woman with rheumatoid arthritis has taken leflunomide for 1 year. she telephones a nurse and says that the result of a home pregnancy test was positive. the nurse should:

Which of Mendel's laws or principles states that gametes carry one allele for each trait?

What is not a name for a chain of amino acids

Why can alternative splicing of messenger RNAs (mRNAs) be advantageous for eukaryotic organisms? A-allows exons from two different genes to be spliced into a new mRNAB-increases the variety of proteins that can be producedC-decreases the average