Genetics Quiz Review

In humans, where does DNA replication take place?

• ribosomes

• nucleus

• mitochondria

• cytoplasm

RNA from a bear is compared to RNA from a sunflower. Both will contain the ________________.

• sugar ribose and the base uracil.

• sugar deoxyribose and the base thymine.

• sugar ribose and the base adenine.

• sugar deoxyribose and the base cytosine.

During DNA replication, a ______________ nitrogen base is complementary to a Adenine.

• Guanine

• Uracil

• Thymine

• Cytosine

Put the following steps of protein synthesis in order: 1. Transfer RNA picks up individual amino acids and carries them to the ribosome. 2. An mRNA copy leaves the nucleus and goes to the ribosome. 3. A protein is made. 4. A single strand of DNA is copied to make mRNA.

• 1, 2, 3, 4

• 4, 2, 1, 3

• 3, 4, 2, 1

• 4, 3, 2, 1

Sections of DNA that serve as the blueprints/instructions for making proteins are called ____.

• ribose sugar

• genes

• triphosphates

• nucleotides

Tags

NGSS.HS-LS1-1

Nucleotides are the monomers for nucleic acids. They consist of a phosphate, a 5-carbon sugar and base. A nucleotide for DNA differs from a nucleotide for RNA because DNA has

• Deoxyribose sugar and Thymine

• Deoxyribose sugar and Uracil

• Ribose sugar and Uracil

• Deoxyribose sugar and Adenine

DNA's shape is a double helix, with nucleotides forming the "twisted ladder" structure. Which components of the nucleotide form the specific parts of the ladder structure?

• Handrails are carbohydrates and lipids, base pairs form the steps of the ladder.

• Handrails are phosphate and sugar, base pairs form steps of the ladder.

• Handrails are the base pairs, phosphate and sugar form the steps of the ladder.

• Handrails and steps are all made of thymine and uracil only

Label some of the parts in the process of protein synthesis.

• 1 represents anticodon; 2 represents mRNA

• 1 represents transcription; 2 represents mitosis

• 1 represents mRNA; 2 represents anticodon

• 1 represents mitosis; 2 represents replication

Tags

NGSS.HS-LS1-1

Transcription aims to make an RNA copy of a gene's DNA sequence. How would the following strand of DNA be transcribed?

TAC-TAG-AGC-ATT

• AUG-TAG-CGA-TTC

• AUG-ATC-TCG-TAA

• AUG-AUC-UCG-UAA

• TAA-AUG-CGC-TAA

Tags

NGSS.HS-LS1-1

Which of the following is a characteristic of RNA but not DNA?

• Contains the base thymine.

• Double-stranded structure.

• Contains the sugar ribose.

• Stable under alkaline conditions.