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Caenorhabditis elegans is an organism with exactly 959 somatic cells.This organism is a(n)


A) fruit fly.
B) earthworm.
C) nematode.
D) angiosperm.

E) None of the above
F) B) and C)

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Egg cells were combined with this cell type to form the cloned sheep named Dolly.


A) skin cells
B) sperm cells
C) mucous membrane cells
D) mammary cells

E) A) and B)
F) C) and D)

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The finding that homeotic genes are present in both mammals and insects indicates that these genes must


A) control the same traits.
B) be on the same chromosomes.
C) have arisen very early in the evolutionary history of animals.
D) have developed independently and simultaneously.

E) A) and B)
F) B) and C)

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What was the most significant research finding that resulted from the successful cloning of Dolly?


A) The key to cloning success is to pick a donor cell from very early in development.
B) Cloned animals are capable of producing normal offspring.
C) The nucleus of a fully-differentiated cell can be reprogrammed to be totipotent.
D) Genetic imprinting, which occurs in adult reproductive tissue, can take months for sperm and years for eggs.

E) B) and D)
F) None of the above

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Plants have special groups of self-renewing cells called


A) root cells.
B) chloroplasts.
C) cast cells.
D) meristems.

E) A) and C)
F) A) and B)

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How did Briggs and King move the nuclei between cells?


A) with a glass pipet
B) with a dissecting needle
C) with a scalpel
D) with forceps

E) B) and C)
F) C) and D)

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