If you wanted to decrease sperm production, which of the following hormones would be most effective?
A) FSH B) inhibin C) TSH D) GnRH
Answer: B
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Which of the following antibiotics is (are) produced by actinoplanetes?
A. Nalidixic acid B. Gentamicin C. Penicillin D. Cycloserine
The fundamental unit of taxonomic classification is the ________.
Fill in the blank(s) with the appropriate word(s).
Male birds often perform a special dance or set of physical displays to attract females. This would be an example of a behavioral isolation mechanism.
Answer the following statement true (T) or false (F)
A researcher has mapped the entire genome of an insect. She notices that the genome contains around a thousand copies of a particular DNA sequence. What is the most likely function of this DNA sequence?
A. Its function is to code for rRNA. B. Its function is to copy and move within the genome via an RNA intermediate. C. Its function is to provide antibiotic resistance. D. The sequence most likely has no function.