DNA and RNA

Which element is present in all nucleic acids, but not in amino acids? A. Hydrogen B. Phosphorus C. Oxygen D. Iron

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

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

Which two bases are present in equal amounts in a double-stranded DNA molecule? Cytosine and Thymine? Adenine and Thymine? Adenine and Uracil? Cytosine and Uracil?

All nucleotides of DNA and RNA contain a.... Uracil base? Thymine base? Ribose sugar? Phosphate group?

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

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

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

TRUE or FALSE? Urea is a compound found in DNA and RNA?

In molecules of DNA, which nitrogenous base bonds with Adenine?

The genetic material in living organisms is composed of organic molecules known as.... Starches? Lipids? Nucleic Acids? Fatty Acids?

TRUE or FALSE? The double helix model of DNA was developed by Hardy and Weinberg

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

True or False? RNA has a double helix shape?

A DNA nucleotide is composed of what ELEMENTS? there are 5....

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

True or False? DNA directs the production of enzymes?

Which structure pairs with adenine nucleotide during the formation of messenger RNA?

which molecule has the shape of a double helix? RNA DNA ADP ATP

Which nitrogenous base is NOT found in DNA?

Which is a structural component of a DNA nucleotide? A. Glucose B. an Enzyme C. Deoxyribose D. an Amino Acid

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

In a DNA molecule, the number of Guanine nucleotides will most likely equal the number of ___________ nucleotides?

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

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

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?