If the syringe contains live R strain and heat-killed S
strain Streptococcus pneumoniae
a. the mouse will live.
b. live S strain bacteria will be detected in the
mouse’s blood.
c. the mouse’s blood will contain live pathogenic R
strain bacteria.
d. The dead S strain bacteria will transform to live
R strain bacteria.
e. DNA from the live R strain bacteria will revive
the dead S strain bacteria.
Answer: b
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How would a large chromosomal inversion affect the expression of a gene if the gene is located between the two break points but no breaks occur within the gene?
A. The inversion would probably have no effect on gene expression. B. The gene would not be transcribed because it would be oriented in the wrong direction. C. The gene would be transcribed in the 3' to 5' direction. D. The gene would be transcribed normally but the mRNA would be translated in the 3' to 5' direction.
Antibiotics that disrupt bacterial ribosomes can also affect
A. eukaryotic mitochondrial ribosomes. B. ribosomal RNA. C. eukaryotic large ribosomal subunit. D. eukaryotic small ribosomal subunit.
What structure divides the eye into anterior and posterior chambers?
A. lens.
B. retina.
C. cornea.
D. iris.
E. optic disc.
Pollen likely evolved in response to plants moving to drier land
Indicate whether the statement is true or false