Which of the following is not caused by Haemophilus influenzae?
What will be an ideal response?
Influenza (flu).
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Explain how Mendel’s law of segregation applies to the distribution of alleles in gametes.
What will be an ideal response?
Avery, MacLeod, and McCarty (1944) demonstrated that DNA was the genetic material by treating heat-killed Streptococcus pneumoniae S (smooth) strain with DNase,
thereby preventing transfer of the "transforming substance" from the killed S strain to the live R (rough) strain when the two were mixed together and injected into mice. Another way that one could demonstrate transformation in bacteria would be to extract DNA from A) an R strain and mix it with cells of an S strain. B) both S and R strains and mix it to allow recombination to take place. C) an ampicillin-sensitive strain and mix it with cells of an ampicillin-resistant strain. D) an S strain and mix it with cells of an R strain. E) None of the above are correct.
In the human cardiovascular system, what's the difference between the pulmonary circuit and the systemic circuit?
What will be an ideal response?
Xenopus laevis rDNA is
a. repeated in sequences that are randomly distributed across the genome. b. arranged in clusters of repeats, but the spacers between repeats are unique. c. generally found in one unique sequence in the genome. d. arranged in clusters of repeats, and the spacers also contain repeated regions. e. arranged in clusters of unique genes with spacers between them that contain repeated regions.