Which of the following reactions requires the removal of water to form a covalent bond?
A. Glycogen--> glucose subunites
B. Peptide--? alanine + glycine
C. Cellulose --> glucose
D. Glucose + galactose-->lactose
E. Fat--> fatty acids + glycerol
Ans: D. Glucose + galactose-->lactose
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In a long DNA molecule, each origin of replication produces a _____ with a _____ on each side
A. replication bubble; replication fork B. replication fork; replication bubble C. replication bubble; DNA ligase D. replication fork; DNA ligase E. None of the answer options are correct.
The phenotype of a person with alpha thalassemia depends on the
A) number of beta globin genes. B) presence or absence of a sickle cell mutation. C) number of alpha globin chains. D) rate of replication of the alpha globin genes.
The female gametophyte of a flower develops
within a(an)
a. stigma. b. anther. c. calyx. d. corolla. e. ovule.
Which of the following is not true of measles?
A. It causes cell membranes to fuse to form syncytia. B. It is a single-stranded nonenveloped RNA virus. C. Its causative agent is a member of the Morbillivirus genus. D. It is transmitted by respiratory droplets. E. It is in the Paramyxovirus family.