Immediately after fertilization of a Drosophila egg, the zygote nucleus undergoes a series of divisions. Subsequent nuclear migration generates a(n) ________

A) zygote
B) endoderm
C) maternal effect
D) homeodomain
E) syncytial blastoderm


E

Biology & Microbiology

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The process by which an electrical charge is used to introduce DNA into a cell to produce a transgenic organism is called electroporation

Indicate whether the statement is true or false

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The R and S genes are linked and 10 map units apart. In the cross R s / r S × r s / r s what percentage of the progeny will be R s / r s?

A) 5% B) 10% C) 25% D) 40% E) 45%

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The ________ model of succession proposes that later successional species are neither inhibited nor aided by species of earlier stages

Fill in the blank(s) with correct word

Biology & Microbiology

Semi-enclosed areas of the coastal ocean where seawater is diluted and partially mixed with freshwater coming from the land are referred to as

A) eddies. B) coastal reservoirs. C) tidal basins. D) estuaries.

Biology & Microbiology