Which of the following specifies a single amino acid in a polypeptide chain?

A. the three-base sequence of mRNA

B. the complementarity of DNA and RNA

C. the aminoacyl-tRNA synthetase

D. the base sequence of the tRNA

Which best describes the different modes of bacterial reproduction? In genetic recombination, two new genetically identical cells are produced. In conjugation, a special sex pilus is required to connect two bacterial cells.

If carbon dioxide is removed from the plants environment what happens to the plants production of sugar

Which of the following statements about bacteria is NOT correct? Bacteria: A. Are present on the skin of even healthy people B. Are microorganisms c. Are essential to the survival of life on earth D. Cannot cause disease in humans

Which phrase best describes scientific theories?

During a physical assessment, a client was diagnosed with increased temperature due to an increased basal metabolic rate (bmr). which hormonal imbalances may the client have?

Which of the following is a social consequence of global fuel dependence? a. rising costs of oil b. increase in atmospheric pollution levels c. poverty causing lack of access to fossil fuel resources d. an increase in the production of fossil fuels

The following flow of energy takes place in one ecosystem: alga → insect → larva flatworm → fish. Which trophic level has the most energy to pass on to the next? flatworm alga fish insect larva

Consider an experiment in which an Hfr strain of E. coli bacteria with the StrS, his+, met + alleles in its genome is mixed with an F - strain of E. coli with the StrR, his-, and met - alleles in its genome.

All fingerprints are invisble to the naked eye

These are organism that come from the same cell and are genetically identical to one another