In recombinant DNA techniques, the gaps in the paired DNA fragments are closed by ____
a. restriction enzymes
b. DNA ligase
c. DNA polymerase
d. DNA replicase
e. reverse transcriptase
ANSWER: b
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In principle, gene expression can be controlled at any of the steps between a gene and its ultimate functional product. For the majority of genes, however, the __________ is the most important point of control. Because this control point can ensure that no unnecessary intermediates are synthesized.
A) Replication. B) Transcription C) Translation. D) PCR.
Viruses are not considered to be alive, yet they share this ability with living cells:
a. They can metabolize food b. They can evolve c. They can reproduce on their own d. They can produce cell membranes e. They can synthesize proteins
Endochondral ossification
What will be an ideal response?
Answer the following questions true (T) or false (F)
1. Ecological dominants are typically the top predators in a community. 2. A community is a more inclusive category than a population. 3. Communities with the most biodiversity are found in areas with low geographic diversity.