Which is true of the breakdown of polymers inside living cells?
A.) it occurs without the need for enzymes
B.) it is energetically unfavorable
C.) it is associated with a negative change in free energy
Answer: C.) it is associated with a negative change in free energy
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In the Hardy-Weinberg equation, p2 + 2pq + q2 = 1, 2pq represents the frequency of
A. homozygous dominant and heterozygous individuals. B. homozygous dominant individuals. C. homozygous recessive individuals. D. heterozygous individuals. E. homozygous recessive and heterozygous individuals.
Nutrients and antibodies move across the placenta from mother to embryo or fetus, as do __________,
which can cause birth defects. Fill in the blank(s) with the appropriate word(s).
Which parts of the bone are expected to be extremely active in a growing child?
a. fibroblasts b. osteoblasts c. osteoclasts d. chondrocytes
The lactose analog isopropyl-beta-D-thio-galactoside (IPTG) is often used to regulate gene expression systems in bacteria. IPTG does not act as a substrate for beta-galactosidase but can bind to, and inactivate, the repressor. In this case, IPTG serves as a(n)
A. DNA-binding protein. B. repressor. C. inducer. D. operon.