Which of the following does not result in increased genetic diversity?
A. All of the answer options would result in
increased genetic diversity.
B. recombination of alleles between
homologous chromosomes during meiosis
C. random sorting of homologous
chromosomes into different gametes during
meiosis
D. fusion of unique gametes during
fertilization
E. conjugation in prokaryotes
A
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Free-living flatworms (planaria) move by using
(a) cilia. (b) flagella. (c) pseudopodia. (d) a muscular foot.
Which type of epithelial tissue lines the blood vessels and the heart?
a. simple cuboidal b. complex cuboidal c. simple squamous d. simple columnar e. stratified cuboidal
Arrange the following from the ecosystem with the smallest average NPP to the ecosystems with the
largest NPP. 1) Lake 2) Savanna 3) Estuary 4) Tropical rain forest 5) Open ocean a. 1, 2, 3, 4, 5 b. 2, 1, 4, 3, 5 c. 2, 1, 5, 3, 4 d. 5, 2, 1, 3, 4 e. 5, 1, 2, 3, 4
An operon is controlled by a repressor. When the repressor binds to a small molecule, it is released from binding to DNA near the operon. The operon is never expressed if a mutation prevents the repressor from binding to the small molecule. The type of control illustrated is:
A. negative inducible. B. attenuation. C. negative repressible. D. positive inducible. E. positive repressible.