For this problem, you may want to create a Punnett Square on a separate piece of paper. Manuel has both cystic
fibrosis, a recessive disorder, and sickle cell anemia which is also a recessive disorder. Manuel’s partner, Lucretia, is
normal for both conditions. What is the probability that Manuel and Lucretia will have a normal child without either of the
conditions Manuel has?
a. 0%
b. 25%
c. 75%
d. 100%
e. It is not possible to solve this problem with the information provided.
ANSWER: e
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Archaeans include three main groups:__________ (methane producers), __________ (salt lovers), and
__________ (heat lovers). Fill in the blank(s) with the appropriate word(s).
The cohesiveness between water molecules is due largely to:
a. hydrogen bonds. b. polar covalent bonds. c. nonpolar covalent bonds. d. ionic bonds. e. hydrophobic interactions.
What happens when an animal cell is placed into a hypertonic solution?
A. plasmolysis B. crenation occurs C. it swells D. it is unchanged
The common ancestor of all animals is likely to have been a ________.
A) colonial, flagellated protist B) colonial, ciliated protist C) colonial, flagellated bacterium D) colonial, ciliated bacterium