Genetics Unit Concepts 1 & 2

DNA replication happens in the _____ in eukaryotic cells

• Cytoplasm

• Nucleus

• Ribosome

• Vacuole

Each _____ in DNA gives the direction to make one specific protein.

• Chromosome

• Codon

• Gene

• tRNA

All RNA contains these items:

• Deoxyribose as the sugar and Thymine as a base

• Deoxyribose as the sugar and Uracil as a base

• Ribose as the sugar and Thymine as a base

• Ribose as the sugar and Uracil as a base

A DNA nucleotide could contain:

• Deoxyribose, cytosine and a lipid

• Deoxyribose, thymine and a phosphate group

• Ribose, uracil and a polypeptide

• Ribose, adenine and thymine

The bond between two complementary bases in DNA would be:

• Hydrogen bonds (weak)

• Hydrogen bonds (strong)

• Covalent bonds (weak)

• Covalent bonds (strong)

A monomer (building block) of DNA or RNA is called:

• Amino Acids

• Nucleotides

• Peptides

• Phosphates

In nucleotides, the letters A, G, C and T represent:

• Phosphate groups

• Deoxyribose sugars

• Nitrogen bases

• Ribose sugars

What is replication?

• DNA opens up and RNA copies it

• DNA opens up & completely unwinds to make 2 new molecules

• DNA opens up, each half used as template to make new strand

• RNA opens up, DNA uses each half as template for new strand

If mRNA has the codon GCA, the tRNA anticodon would be:

• CGU

• ACG

• TTA

• UUU

The sequence of _____ in a DNA molecule determines the amino acid order in a protein

• lipids

• nucleotides

• sugars

• anticodons