What is the combination of transcription factors and RNA polymerase II called?

Transcription initiation complex

What is the role of the TATA box in eukaryotes?

It forms the transcription initiation complex

It signals the end of transcription

It acts as a transcription factor

Three nucleotide sequences that code for a specific amino acid

Sequences of four nucleotides that code for proteins

Single nucleotides that form DNA

Pairs of nucleotides that create RNA

What is the role of transfer RNA (tRNA) in protein synthesis?

It transfers amino acids to the growing polypeptide.

What is the function of the E site on a ribosome?

It is the exit site where discharged tRNAs leave the ribosome

It holds the tRNA that carries the next amino acid

It holds the tRNA that carries the growing peptide chain

How was the role of DNA in heredity first discovered?

By studying bacteria and viruses

What was the main conclusion of the Hershey-Chase experiment?

DNA is the genetic material of phages

Proteins are the genetic material of phages

RNA is the genetic material of phages

Lipids are the genetic material of phages

What are the components of a DNA nucleotide?

Nitrogenous base, sugar, phosphate group

Nitrogenous base, lipid, carbohydrate

What did Franklin conclude about the structure of DNA?

It has two outer sugar-phosphate backbones

It has a single sugar-phosphate backbone

Why is accurate replication of DNA prior to meiosis important?

It allows for the transmission of genetic information to the next generation.

It ensures genetic diversity in offspring.

It prevents mutations in the DNA sequence.

It increases the number of chromosomes in a cell.

What role does each DNA strand play during replication?

Acts as a template for building a new strand

Combines with another DNA molecule

What is the result of DNA replication?

Two exact replicas of the parental molecule

What is the function of helicases in DNA replication?

They untwist the double helix at the replication fork.

They bind to and stabilize single-stranded DNA.

They relieve the strain of twisting of the double helix.

They open a replication "bubble."

Where does the replication fork form during DNA replication?

At a Y-shaped region where parental DNA strands are being unwound.

At the center of the DNA strand.

What role do single-stranded binding proteins play in DNA replication?

They bind to and stabilize single-stranded DNA.

They open a replication "bubble."

They relieve the strain of twisting of the double helix.

How does topoisomerase assist in DNA replication?

By relieving the strain of twisting of the double helix.

By binding to single-stranded DNA.

By opening a replication "bubble."

What occurs at the origins of replication?

The DNA strands are separated and a replication "bubble" is opened.

Single-stranded DNA is stabilized.

The strain of twisting is relieved.

Where does replication begin in a DNA molecule?

At the center of the chromosome

In which direction does replication proceed from each origin?

Only towards the replication fork

Only away from the replication fork

Genetics Quiz

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53 Qs

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Genetics Quiz

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Biology

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University

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Practice Problem

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Hard

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NGSS

HS-LS1-1, HS-LS3-1, HS-LS3-2

Standards-aligned

Ian Ian

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53 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the process by which DNA directs protein synthesis?

Gene mutation

Gene expression

Gene replication

Gene deletion

What are the two stages of gene expression?

Replication and mutation

Transcription and translation

Translation and replication

Mutation and transcription

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What links genotype and phenotype?

Carbohydrates

Lipids

Proteins

Nucleic acids

What is the role of RNA in protein synthesis?

It is the site of translation.

It is the bridge between genes and protein synthesis.

It synthesizes DNA.

It degrades mRNA.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is produced during transcription?

Ribosomal RNA (rRNA)

Transfer RNA (tRNA)

Messenger RNA (mRNA)

Deoxyribonucleic acid (DNA)

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where does translation occur?

Nucleus

Ribosomes

Mitochondria

Golgi apparatus

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the process of synthesizing a polypeptide using information from mRNA called?

Transcription

Replication

Translation

Mutation

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Genetics Quiz

53 questions

What is the process by which DNA directs protein synthesis?

What are the two stages of gene expression?

What links genotype and phenotype?

What is the role of RNA in protein synthesis?

What is produced during transcription?

Where does translation occur?

What is the process of synthesizing a polypeptide using information from mRNA called?

What is the process called where DNA is converted into pre-mRNA?

Where does RNA processing occur in the cell?

What is the final product of translation?

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