Which of the following elements is essential for ALL bacterial cells but is considered a micronutrient required at relatively low levels?
a. calcium
b. phosphorus
c. nitrogen
d. selenium
Answer: D
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Which enzyme assembles new strands of DNA during replication?
a. DNA ligase b. DNA synthase c. primers d. DNA polymerase e. hybridization
The term reproductive isolation mechanism refers to ____
a. specific areas where males compete or display for females b. the process by which sexual selection evolves within a population
c. a blockage of gene flow between populations d. the inability of a species to continue reproduction e. legal limits to procreation
The movement of genes from one species into the genome of another is referred to as _____
Fill in the blank(s) with correct word
Sketch the main elements of an inducible operon, such as the lactose operon, and explain the functions
of the operator and promoter regions. What will be an ideal response?