TRUE or FALSE? BOTH RNA and DNA are present in the nucleus of the cell?

True or False? DNA directs the production of enzymes?

True or False? RNA has a double helix shape?

Which nitrogenous base is normally present in DNA but absent in RNA?

A strand of DNA consists of thousands of smaller, repeating units known as...

Which element is present in all nucleic acids, but not in amino acids?

TRUE or FALSE? DNA and RNA may contain the four bases adenine, cytosine, guanine, and thymine?

In humans there are 23 pairs of chromosomes. One pair of the 23 are sex chromosomes. The other 22 pairs are known as... Autosomes homozygotes heterozygotes Centromeres

Who were the two scientists that proposed the double helix arrangement of the DNA molecule?

Based on nucleic structure, in what way do DNA molecules differ from RNA molecules?

A sequence of nucleotides that directs the synthesis of a product, such as protein is... a gene a trait heredity polymerase

Knowledge of the structure of DNA is important in the study of life because DNA... stores food? transmits genetic information? transmits chemical energy? stores enzymes?

Deoxyribosenucleic acid molecules serve as a template for the synthesis of molecules of.... mRNA Amino Acids Carbohydrates Lipids