When two DNA pieces cut with the same restriction enzyme are combined, sticky ends will:
A. not associate.
B. associate only if they are double stranded.
C. associate by covalent bonds.
D. associate due to DNA ligase.
E. associate by complementary base pairing and hydrogen bonds.
Ans: E. associate by complementary base pairing and hydrogen bonds.
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________ reactions require an input of energy when electrons are gained, such as in the conversion CO2 ? CH4.
Fill in the blank(s) with the appropriate word(s).
“Double fertilization” produces nutrient tissue by the
union of a. two egg nuclei and one sperm nucleus. b. two sperm nuclei and one egg nucleus. c. two sperm nuclei and two egg nuclei. d. one sperm nucleus and endosperm mother cell nuclei. e. two sperm nuclei and one endosperm mother cell nucleus.
The process of increasing tone by activating more motor units is called ________
Fill in the blank(s) with correct word
A change in the genetic material that involves the insertion or deletion of one or more nucleotides in a gene, resulting in a change in the triplet grouping of a nucleotide
What will be an ideal response?