Answer the following statements true (T) or false (F)
1. DNA helicase and topoisomerase are similar insofar as they promote the unwinding and uncoiling of DNA.
2. 35Sulfur (35S) would be a better isotope than 32phosphate (32P) to track DNA synthesis.
3. If the sequence for one strand of DNA is 3?-TCGATT-5' then its complementary strand would have a sequence of 3?-AGCTAA-5'.
4. Okazaki fragments are sequences of DNA most often found on the lagging strand of DNA during DNA replication.
5. The progressive shortening of telomeres in DNA correlates with cell senescence.
1. TRUE
2. FALSE
3. FALSE
4. TRUE
5. TRUE
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Each DNA parent strand within a replication bubble acts as a template strand that produces:
A. either a leading strand or a lagging strand. B. two leading strands or two lagging strands. C. one leading strand and one lagging strand. D. only leading strands. E. only lagging strands.
The influence of density-independent factors on populations is generally less predictable than the influence of density-dependent factors
Indicate whether the statement is true or false
Reactions in which atoms are rearranged within a molecule are catalyzed by
A. hydrolases. B. isomerases. C. transferases. D. ligases. E. polymerases.
In a testcross an individual of unknown genotype is crossed with ___________.
a. a homozygous dominant individual b. a homozygous recessive individual c. a heterozygous individual d. an individual lacking the gene