Which nitrogenous base is normally present in rna
molecules but not in dna molecules?
(1) adenine
(3) thymine
(2) cytosine
(4) uracil

In attempt to solve the working problems created by the industrial revolution, the united states and many countries in europe considered and/or adopted

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled