Bacterial mating (or conjugation) is a bidirectional process where nucleic acids (DNA or RNA) are transferred between two cells
Indicate whether the statement is true or false.
Answer: FALSE
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Primers are used in both PCR and in DNA sequencing. What is the purpose of the primers?
A. to separate the DNA template strands. B. to provide a 3'- OH for DNA polymerase to build a new DNA strand. C. to terminate synthesis of the growing DNA strand. D. to separate various-sized DNA products. E. to add nucleotides to a growing DNA strand.
Being heterozygous for the hemoglobin gene variant that causes the disease sickle-cell anemia can be advantageous in what situation?
A. in areas where malaria is endemic B. when iron intake is too low in the diet C. in elite athletes because it slightly decreases oxygen affinity D. when a person has anemia caused by other factors E. when a person is at high altitude
Humans are iteroparous.
Answer the following statement true (T) or false (F)
Which of the following BEST defines a sensory receptor?
a. an organ, such as the human eye b. endings of sensory neurons c. highly branched endings of axons d. any form of energy e. an action potential