Eukaryotic chromosomes contain two general domains that relate to the degree of condensation. These two regions are ________
A) void of introns
B) called heterochromatin and euchromatin
C) separated by large stretches of repetitive DNA
D) each void of typical protein-coding sequences of DNA
E) uniform in the genetic information they contain
B
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Which vertebrate is a fish, has a cartilaginous skeleton, no jaws, and a tooth-covered tongue?
a. shark b. lamprey c. coelacanth d. goldfish e. lungfish
Select the best response to the question. ?What is a risk factor for contracting tapeworm or hookworm?
A) poor sanitation B)living or traveling in the Middle East C) living in a nursing home D) young age
The majority of white blood cells in circulation include
A) neutrophils and lymphocytes. B) eosinophils and basophils. C) macrophages. D) erythrocytes.
Protein synthesis in eukaryotes is similar to the process in prokaryotes in that both eukaryotes and prokaryotes
A) have exons. B) have introns. C) require snRNPS. D) use methionine as the "start" amino acid. E) use codons to determine polypeptide sequences.