Question

1. which type of rna takes the information of dna and brings it to the ribosomes for protein synthesis? a) mrna b) trna c) rrna d) crna history break famous canadian scientists while people have known for a long time that characteristics such as flower colour or seed shape may be passed from one plant generation to the next, no one knew what molecule was responsible for the transmission of that information. many scientists thought that proteins carried genetic information because there were so many different types of proteins in a cell. in 1944, two canadian - born researchers, oswald avery and colin macleod, collaborated with an american geneticist named maclyn mccarty on an experiment involving pneumonia - causing bacteria. the scientists began with two strains of bacteria: . s bacteria, which caused disease . r bacteria, which were harmless from the s bacteria, the scientists extracted and purified dna and proteins. they placed the dna from the s strain into a test tube containing one group of r bacteria. they placed the proteins from the s strain into a different test tube containing another group of r bacteria. the r bacteria that received dna from the s strain were transformed from harmless bacteria into disease - causing bacteria. in contrast, the r bacteria that received proteins from the s strain remained harmless. through their experiment, the team of avery, macleod, and mccarty showed conclusively that dna was the material of heredity, not proteins. here are some other famous canadian geneticists: . sidney altman, who won the nobel prize for chemistry in 1989 for his discovery of the catalytic functions of rna. . michael smith, who won the 1993 nobel prize for chemistry, for developing a technique that allows scientists to mutate or change the sequence of nucleotides that make up dna at specific spots. since dna makes up genes, and genes code for protein, smiths technique made it much easier for scientists to study protein function. in addition, smiths discovery paves the way for scientists to change dna to correct harmful mutations and to create beneficial genes that would give organisms desirable traits.

Explanation:

mRNA (messenger RNA) is responsible for taking the information from DNA in the nucleus and transporting it to the ribosomes in the cytoplasm for protein - synthesis. tRNA (transfer RNA) brings amino acids to the ribosome during protein synthesis, rRNA (ribosomal RNA) is a component of the ribosome itself, and cRNA (complementary RNA) is not involved in this particular information - transfer process for protein synthesis.

Answer:

A. mRNA