Science Bowl

BIOLOGY

Biology - 38

BIOL-91; Multiple Choice:  The type of gene interaction in which the effects of one gene override
or mask the effects of other entirely different genes is called:

a)  linkage
b)  mutation
c)  pleitropy

(pron: ply-ah-tropy)

d)  epistasis

(pron: eh-pis-te-sis)

ANSWER:  D -- EPISTASIS

BIOL-91; Multiple Choice:  For which of the following creatures is fat the greatest percentage of
body weight?

a)  termite
b)  blue whale
c)  zebra
d)  female lion

ANSWER:  B -- BLUE WHALE

BIOL-91; Multiple Choice:  Which is false regarding freshwater fish? 

a)  their blood is hypertonic to their environment
b)  they often actively take up salt
c)  they excrete urine hypotonic to the blood
d)  their gills actively excrete salts

ANSWER:  D -- THEIR GILLS ACTIVELY EXCRETE SALTS

BIOL-91; Multiple Choice:  Neutral fats, oils and waxes may be classified as: 

a)  lipids
b)  carbohydrates
c)  proteins
d)  none of the above

ANSWER:  A -- LIPIDS

BIOL-91; Short Answer:  Name three basic morphologies of bacteria. 

ANSWER:  (1)  COCCI (COCCUS), (2)  BACILLI (BACILLUS) or ROD, 

    (3)  SPIROCHETES or SPIRILLA or SPIRAL