3C Molecular Genetics and Biotechnology

Which of the following are true statements regarding the relationship among DNA, genes,and chromosomes?

• DNA is a location on a gene

• Genes are made up of chromosomes and proteins

• Genes are found on chromosomes

• Chromosomes are found on DNA

• Chromosomes are made up of DNA and proteins

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According to central dogma of molecular biology, which of the following transfers of information is not possible?

• From DNA to DNA

• From DNA to RNA

• from RNA to protein

• From protein to RNA

Genes contain instructions for assembling which of the following?

• Chromosomes

• Carbohydrates

• cells

• Proteins

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Why is the nucleotide sequence of DNA important?

• It specifies the type of sugar found

• It specifies the type of hydrogen bonds formed

• It specifies the genetic code used to make proteins

• It specifies the phosphate bonds formed

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What is the primary purpose of DNA replication?

• To reduce the amount of DNA in the nucleus of each cell

• To ensure that daughter cells have a complete copy of DNA

• To create new sequences of DNA that code for different proteins

• To multiple the amount of DNA in the nucleus of each cell

Which part of DNA carries genetic information?

• The phosphate-sugar backbone

• The order of nitrogenous bases

• The hydrogen bonds between nucleotides

• The deoxyribose sugar

Which statement best describes the function of DNA in all cells?

• DNA serves to block all mutations in a cell

• DNA carries its information to the cytoplasm for exocytosis

• DNA directs the synthesis of proteins for the cell

• DNA acts as a chemical messenger for the cell

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Once DNA is replicated during the cell cycle, which process is necessary to create daughter cells with the normal number of chromosomes?

• Mitosis

• DNA polymerase

• meiosis

• Semi-conservative replication

In an unmutated segment of DNA, the thymine molecules will pair with an equal number of which type of molecule?

• Adenine

• Uracil

• guanine

• Cytosine

One long, continuous strand of DNA would be found in which of the following?

• A chromosome

• A gene

• a protein

• An amino acid