How do cells become differentiated?
a) Different genes are expressed so that different proteins are produced.
b) Paternal effect genes begin the process of differentiation by providing positional information.
c) They differentiate through the process of mitosis.
d) Some cells contain maternal chromosomes and some contain paternal chromosomes.
e) The DNA in each cell changes so that the appropriate proteins are produced.
Answer: a) Different genes are expressed so that different proteins are produced.
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In the following genetic sequence, identify the correct complementary strand of DNA for the sequence 3' CAGTACCGTAAGCT 5'
a. 3' GTCATGGCATTCGA 5' b. 5' GTCATGGCATTCGA 3' c. 5' AGCTTACGGTACTG 3' d. 5' GTCATGGCTTCGA 3'
Tarsiers, new world monkeys, old world monkeys, and apes are all living members of the ____ mammalian lineage
a. Strepsirhini b. monotremes c. Rodentia d. Haplorhini e. marsupials
Animals that are hermaphroditic usually
a. fertilize their own eggs. b. cross-fertilize. c. donate eggs to other individuals. d. cannot reproduce sexually. e. fit all of these descriptions
Choose the correct order of proteins that function in the initiation, elongation, and termination stages of DNA replication.
A. DNA polymerase I, DnaA, DNA polymerase III, DNA ligase B. DNA polymerase III, DNA polymerase I, DNA ligase, DnaA C. DnaA, DNA polymerase III, DNA polymerase I, DNA ligase D. DnaA, DNA polymerase I, DNA polymerase III, DNA ligase