Summarize the process of DNA replication and outline the difference between how each strand replicates. What will be an ideal response?
ANSWER: As the polynucleotide strands uncoil, bases are added to the newly synthesized strand by
complementary base pairing with bases in the template strand. The new bases are linked
together by DNA polymerase. DNA synthesis can proceed only in the 5’ to 3’ direction and,
therefore, only one of the DNA strands can be assembled in a single piece. Newly
synthesized DNA on the 3’ to 5’ template strand is made in short segments and linked
together by the enzyme DNA liga
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The feeding habits of lampreys are best described as ____
a. suspension feeding b. predatory c. parasitic d. scavenging e. filter feeding
MacArthur discovered that five species of warblers coexisted on spruce trees by foraging on the same caterpillar, but in different places of the tree canopy. This is
A. an exception based on birds taking longer to eventually compete and eliminate competitors. B. an exception to the competitive exclusion principle. C. an example of resource partitioning. D. confirmation that all warblers were actually variations of the same species because different species couldn't coexist.
When one DNA molecule is copied to make two new DNA molecules, the resulting DNA molecules contain
A) none of the parent DNA. B) 50% of the parent DNA. C) 75% of the parent DNA. D) 100% of the parent DNA
Isotopes are different forms of the same element.
Answer the following statement true (T) or false (F)