In bacteria, what name is given to a cluster of genes with related functions, along with their DNA control sequences?
A) operon
B) operator
C) promoter
D) exon
A
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A hybrid zone is defined as an area where two populations may breed and produce ____
a. inviable, sterile offspring b. viable host races c. inviable hybrid subspecies d. viable, fertile offspring e. viable, sterile offspring
Social attachments are formed between parents and offspring.
Choose the letter of the best match: A. cognition B. waggle dance C. navigation D. filial imprinting E. fixed action pattern
Insulin and glucagon work together to maintain optimum levels of ____ in the blood
a. glycogen b. glucose c. alpha cells d. thyroxine e. digestive enzymes
This is a nucleotide containing molecule that is commonly used to carry electrons in the cell.
A. NAD+ B. ADP C. pyruvic acid D. ATP