Mobile prokaryotes can move around with the help of
A) endospores.
B) flagella.
C) sex pili.
D) peptidoglycan.
E) plasmids.
B
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Chloroplasts are the site of ____
a. DNA synthesis b. cellular digestion c. protein synthesis d. photosynthesis e. lipid synthesis
Experiments by Chapeville and colleagues proved that the genetic code derives its specificity through what interactions?
A) hydrogen bonds and disulfide bonds that maintain the shape of the tRNAs B) complementary base pairing between amino acids and tRNA C) complementary base pairing between tRNA and mRNA D) ionic bonds between the small and large subunits of the ribosome E) hydrogen bonding between the ribosomal subunits and the mRNA
Which specialization evolved in land plants to allow for reproduction in dry conditions?
A. Xylem B. Phloem C. Stomata D. Roots E. Sporophyte dominance
One of the important inherited defects in the second line of immune defense is a condition called chronic granulomatous disease. What is this disease, and how is it caused?
What will be an ideal response?