Which of these terms could be used to describe a person with one normal gene and one gene for a

recessive disease?
a. heterozygote
b. carrier
c. a female
d. a male
e. homozygote


B

Biology & Microbiology

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You cross a true-breeding stock of black BB. mice with skinny (SS) toes to a stock of white bb. mice with fat (ss) toes. From this, you produce an F1 generation of black mice with skinny toes (Bb, Ss)

If the single genes responsible for coat color and toe appearance do not sort independently, then you would expect to see: A. more than 75% of your F2 black mice with skinny toes. B. more than 25% of your F2 black mice with fat toes.

Biology & Microbiology

Which of the following represents a descending neural tract?

a. Spinothalamic b. Spinocerebellar c. Corticospinal Posterior (dorsal) column

Biology & Microbiology

During the absorptive phase, the pancreas releases a great deal of ________ into the bloodstream.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Signal transmission is faster in myelinated axons because __________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology