How is the process of adding the correct amino acid onto a tRNA molecule catalyzed?
a. by RNA polymerase
b. by the tRNA itself
c. by an aminoacyl-tRNA synthetase
Ans: c. by an aminoacyl-tRNA synthetase
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Deciduous trees are the dominant plant in which type of biome?
a. tropical forest b. temperate forest c. chaparral d. savanna
In mitosis, if a parent cell has 12
chromosomes, each daughter cell will have how many chromosomes?
a. 48 b. 24 c. 12 d. 6 e. 3
A genet is produced asexually
Indicate whether the statement is true or false
Hooke and van Leeuwenhoek helped to create the basis of the cell theory by __________.
a. observing and documenting cells, and using microscopes to visualize the invisible structure of living things b. developing industrial products using microorganisms c. clarifying the connection between disease and microorganisms d. proving that living organisms originate spontaneously from nonliving materials