DNA Structure
DNA Replication
Transcription
Translation
Mutations
100

This type of bond holds complementary nitrogen bases together across the two DNA strands?

Hydrogen bonds

100

The enzyme that unzips/breaks the DNA double helix

Helicase

100

The product made during transcription

mRNA

100

Where does translation take place in the eukaryotic cell

Cytoplasm

100

A mutation that changes one base but doesn't change the amino acid sequence

Silent mutation

200

In DNA, adenine always pairs with this nitrogenous base?

Thymine

200

The enzyme that adds new nucleotides to the growing DNA strand

DNA polymerase

200

The enzyme that builds the RNA strand from DNA

RNA polymerase

200

The three base sequence on mRNA that codes for an amino acid

Codon

200

A mutation that changes one amino acid in a protein

Missense

300

This sugar makes DNA different from RNA?

What is deoxyribose

300

Short DNA segments formed on the lagging strand during replication

Okazaki fragments
300

Transcription occurs in this part of the eukaryotic cell

Nucleus

300

The molecule that carries amino acids to the ribosome

tRNA

300

A mutation that creates a stop codon when the protein is not done being made

nonsense

400

Name the two parts that make up the backbone of DNA?

Sugar and Phosphate group

400

The strand synthesized continuously towards the replication fork

Leading strand

400

The DNA strand used as the template to make mRNA

Template strand

400

The start codon for translation

AUG (methionine)

400

Insertion or deletion of a nucleotide that shifts the reading frame

Frameshift mutation
500

The direction of DNA strands is described as this because the strands run in opposite directions (3' to 5' and 5' to 3')

Antiparallel

500

Why is DNA called semi conservative

One old strand and one new strand

500

After transcription in eukaryotes, these non coding regions are removed from RNA

Introns
500

What is the P site

Holds the tRNA molecule that carries the growing polypeptide

500

Why are frameshift mutations normally more severe then missense mutations

They change the codon after the mutation which changes the rest of the sequence

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