____ nucleotides form the code for one amino acid

a. Two
b. Three
c. Six
d. Nine
e. Twelve


b

Biology & Microbiology

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Deinococcus radiodurans is capable of withstanding especially high levels of radiation, and the carotenoids they produce enhance this resistance

Indicate whether the statement is true or false.

Biology & Microbiology

Some plants are able to endure frequent flooding events because they contain a tissue with loose parenchyma cells and large air spaces called  

A.  xylem. B.  spongy mesophyll. C.  pneumatophores. D.  aerenchyma. E.  epidermal tissue.

Biology & Microbiology

In most animals, the sperm and egg contribute an equal __________ to the zygote

a. amount of cytoplasm b. number of chromosomes c. number of enzymes d. number of mitochondria e. number of ribosomes

Biology & Microbiology

The sample size equals the number of fish in each stream

a. true b. false

Biology & Microbiology