Beginning with the simplest level of structure, which order of organization of genetic material is CORRECT?
A. DNA, nucleotide, gene, genome, chromosome.
B. nucleotide, DNA, gene, chromosome, genome.
C. DNA, nucleotide, gene, chromosome, genome.
D. nucleotide, DNA, gene, genome, chromosome.
E. nucleotide, DNA, chromosome, gene, genome.
B. nucleotide, DNA, gene, chromosome, genome.
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The synthesis of a growing strand of DNA is carried out by adding nucleotides to the ___ end of an existing strand.
A. 2' B. 3' C. 5' D. 1'
According to recent studies, the human malaria parasite Plasmodium falciparum was introduced to humans by:
A. mosquitoes. B. gorillas. C. chimpanzees. D. orangutans. E. pocket gophers.
Coral bleaching where the photosynthetic endosymbiont is lost or becomes non-functional can be caused by temperature increases as small as 2oC.
Answer the following statement true (T) or false (F)
Which types of cells are most likely to have high levels of methyl groups in their DNA?
a. embryonic cells b. blastocyst cells c. senescent cells (cells that are not actively dividing) d. apoptotic cells (cells that are undergoing cell death) e. rapidly dividing cells