Why is the operon arrangement of genes beneficial to certain bacteria?
A. It allows for the differential regulation of individual genes that encode proteins with a common function.
B. It allows the coordinated regulation of a group of genes that encode proteins with a common function.
C. It allows the separate regulation of individual genes that encode proteins with different functions.
D. It allows the coordinated regulation of a group of genes that encode proteins with different functions.
E. It allows for coordinated regulation of a group of proteins involved in numerous cellular activities.
B. It allows the coordinated regulation of a group of genes that encode proteins with a common function.
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If over several generations a trait does not vary in a group of organisms, that group can be called a _______
A. dihybrid B. hybrid C. true-breeding line D. variant E. cross-fertilized line
Identifying an individual by his or her DNA is referred to as ____
a. structural genomics b. genomic fingerprinting c. RNAprofiling d. DNA profiling e. individual genomics
Briefly explain the iron-sulfur world hypothesis and identify two pieces of evidence that support this hypothesis. What will be an ideal response?
Which of these worms are segmented?
A. annelids B. planarians C. roundworms D. flukes E. All worms are segmented