The number of linkage groups in an organism with sex chromosomes equals:
A. 1n
B. 2n +1
C. 1n + 1
D. 2n + 2
C
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Studying the transcriptional activity of flagellar genes would not likely reveal differential changes when the cells are actively motile compared to nonmotile activity, because a two-component regulatory system is sufficient to control flagellar activity
Indicate whether the statement is true or false.
When X-linked traits are recessive, females will express the traits only if they are ____ for the recessive allele
Fill in the blank with the appropriate word.
When does the heart begin to develop?
A. week 1 B. week 7 C. week 9 D. week 5 E. week 3
Which taxonomic group containing eukaryotic organisms is thought to be directly ancestral to the plant kingdom?
A) golden algae B) apicomplexans C) foraminiferans D) radiolarians E) green algae