The most important distinguishing feature of eukaryotes that is lacking in prokaryotes is
A. the cell respiration process which if fundamentally different in prokaryotes.
B. the DNA replication mechanism .
C. the division of the cell into compartments bounded by membranes.
D. the presence of a cell wall in eukaryotes.
Answer: C
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Hemophilia is a genetic disorder in which the blood
a. does not contain platelets. b. does not contain white blood cells. c. contains too many platelets. d. does not contain the usual clotting factors. e. contains too many clotting factors.
Octopuses and squid may not necessarily be smarter than other invertebrates because:
a. all invertebrates share the same basic nervous system b. no invertebrate is more complex than any other c. they are able to perform explorative and manipulative tasks that humans have deemed "intelligent" d. it is impossible to give octopuses and squids problem-solving tests e. they are more primitive than arthropods and echinoderms
Which statement concerning reproduction is FALSE?
(a). Hereditary information is passed on to the next generation. (b). Hereditary information is in the form of genes. (c). The offspring of asexual organisms have the same genes as the single parent. (d). The offspring of sexual organisms have roughly one half of the genes from each parent. (e). The offspring of multicellular organisms tend to be identical to the parent.
Which is NOT true regarding T4 genome replication and transcription?
a. T4 encodes its own DNA replication complex. b. The T4 genome exhibits circular permutation, meaning the arrangement of genes differs. c. The T4 genomes are recombined into a concatemer prior to headful packaging. d. T4 encodes its own RNA polymerase for transcription of phage genes.