Which of the following represents the possible genotype(s) resulting from a cross between an
individual homozygous for black hair (BB) and an individual homozygous for blonde hair (bb)?
a. BB and Bb
b. BB, Bb, and bb
c. BB only
d. Bb only
e. bb only
D
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Research has demonstrated that ____ play a role in the pathogenesis of polycystic kidney disease in mice models
a. hexokinases b. dsRNAs c. miRNAs d. rRNAs e. sorbitases
Ribosome inactivating proteins (RIPs), such as the poisin ricin, are deadly because they inactivate ribosomes. How does ribosome inactivation lead to death?
What will be an ideal response?
Which of the following is not generally considered to have contributed to the success of reptiles on land and in the sea?
a. amniotic egg b. skin covered by scales c. specialized copulatory organs d. ventral nerve cord e. efficient kidneys
A healthy young couple are both carriers of cystic fibrosis; the chance that each of their future children will inherit this serious illness is
a. 50%. b. 0%, because cystic fibrosis is not an inherited illness. c. 25%. d. More information is needed about the couple's parents and grandparents to determine probability. e. 100%, because both parents are identified as carriers of cystic fibrosis