There are ______ amino acids that humans use

A. 15
B. 10
C. 20
D. 25


Ans: C. 20

Biology & Microbiology

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The different DNA configurations that are generated by super coiling are called topoisomers of one another

Indicate whether the statement is true or false

Biology & Microbiology

Dideoxyribonucleotides (ddNTPs) used for DNA sequencing lack oxygen atoms at ________

A) the 1' carbon of the pentose sugar B) the 1' and 2' carbons of the pentose sugar C) the 2' and 3' carbons of the pentose sugar D) the 3' and 5' carbons of the pentose sugar E) the 5' carbon of the pentose sugar

Biology & Microbiology

Describe three characteristics of enhancers

What will be an ideal response?

Biology & Microbiology

Capillaries come together to form

a. arteries b. tissue c. vein d. lympathic system

Biology & Microbiology