When a mutation occurs during DNA replication, ____ replaces the incorrect nucleotide with the correct one after the

mismatched nucleotide has been removed.
a. mismatch repair enzymes
b. DNA ligase
c. DNA polymerase
d. telomerase
e. helicase


c

Biology & Microbiology

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The carbon source for a heterotroph is

a. breathing carbon dioxide from the air. b. water. c. sunlight. d. ingesting organic matter. e. various inorganic molecules found in all ecosystems.

Biology & Microbiology

Which of the following is an undesirable

characteristic of the cuticle? a. It restricts the movement of water. b. It is transparent to sunlight. c. It coats the exposed surface of leaf epidermal cells. d. It restricts the movement of carbon dioxide. e. None of these is undesirable.

Biology & Microbiology

Fill in the blanks to complete the following statements. Bacteria can produce __________ that are highly resistant forms of the organism that develop in response to adverse environmental conditions

Fill in the blank(s) with correct word

Biology & Microbiology

Which of the following factors can affect carrying capacity?

A. Population size B. Human activity C. Growth rate D. Natural selection E. Generation time

Biology & Microbiology