Science Bowl

BIOLOGY

Biology - 61

BIOL-92; Multiple Choice:  Which of the following terms refers to the frequency with which a
gene is expressed in a detectable way?  Is it: 

a) polygenetics
b) codominance
c) allelism
d) penetrance

ANSWER:   D -- PENETRANCE

BIOL-92; Multiple Choice:  Which of the following terms refers to the collection of all alleles of
every gene present in the members of a population?  Is it:

a) population expression
b) gene pool
c) genetic dictionary
d) none of these

ANSWER:   B -- GENE POOL

BIOL-92; Multiple Choice:  Which of the following are capable of causing chromosomal
mutations?

a) hydrogen peroxide
b) high body temperature
c) X-rays
d) all of the above

ANSWER:   D -- ALL OF THE ABOVE

BIOL-92; Short Answer:  In studies of cells, the nuclei, mitochondria, endoplasmic reticulum,
dictyosomes, microbodies and plastids are collectively known as what in the eucaryotic cell?

ANSWER:   ORGANELLES

BIOL-92; Multiple Choice:  In a cell, the membrane bounding the outer surface of the cytoplasm
is known as:

a) tonoplast
b) cytoplast
c) plasmalemma

ANSWER:   C -- PLASMALEMMA