What does a gene actually code for?
A) A polypeptide
B) An enzyme
C) An amino acid
D) A protein
E) A nucleotide
A
Biology & Microbiology
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Which layer of the digestive tract covers and protects the gut?
A. lumen B. mucosa C. submucosa D. longitudinal muscles E. serosa
Biology & Microbiology
Which of the following is the least inclusive level in the taxonomical hierarchy?
a. kingdom b. phylum c. genus d. species
Biology & Microbiology
Megaspores are produced
a. within ovules. b. within seeds. c. by pollen grains. d. by the gametophyte. e. by the union of egg and sperm cells.
Biology & Microbiology
Which is not a characteristic of the gymnosperms?
A) Cones B) Seeds C) Pollen D) Flowers
Biology & Microbiology