What is the function of mRNA?

carry DNA's instructions to the ribosome

transport amino acids to ribosome

What are the amino acids for this mRNA strand? AAC GUG CGA UUC AGC

asparagine, valine, arginine, phenylalanine, serine

asparagine, cysteine, proline, serine, serine

asparagine, valine, arginine, leucine, serine

asparagine, alanine, arginine, proline, serine

What is made at the end of transcription?

2 semi-conservative strands of DNA

What is made at the end of translation?

2 semi-conservative strands of DNA

Pick the proper match for the shape of DNA to RNA

DNA is a double helix and RNA is a single strand.

RNA is a double helix and DNA is a single strand.

DNA is a ring and RNA is a double helix.

DNA is a triple helix and RNA is a double helix.

What is different about the sugars found in DNA and RNA?

DNA has a deoxyribose sugar whereas RNA has a ribose sugar.

RNA has a deoxyribose sugar whereas DNA has a ribose sugar.

There is no difference in their sugars.

What is the function of tRNA?

It transfers the amino acid to the growing protein on the ribosome.

It carries the message from DNA to the ribosome.

It is in the cell membrane and controls what moves in and out.

Which definition matches what transcription is?

The process of changing DNA into a mRNA strand

The process of making a protein

The process of bringing amino acids to the ribosome

The process of making 2 semi-conservative DNA strands.

How are transcription and translation similar in both prokaryotes and eukaryotes?

They both have DNA and ribosomes so they can do both processes.

They both have RER and golgi bodies so they can do both processes.

They both have a nucleus so they can do both processes.

They both have a nucleus and RER so they can do both processes.

It is a three letter section of bases that are read by ribosomes to stamp amino acids into a protein

They are the codes on the DNA (hence "code-on"

It is a type of mutation that occurs when there has been a substitution, deletion or insertion.

It is a made up word for this quiz. Nice try, Wampler.

A scientist puts nucleotide chains of UUUUUU in a test tube under conditions allowing protein synthesis. Soon the test tube is full of polypeptide chains composed only one the amino acid phenylalanine. What does this experiment indicate?

UUU codes for the amino acid phenylalanine.

The amino acid phenylalanine is composed of uracil.

Protein synthesis malfunctions in test tubes.

Most proteins contain only one type of amino acid.

Which of the following would most likely cause a mutation?

the insertion of a nucleotide into DNA

the placement of ribosomes on the endoplasmic reticulum

the movement of transfer RNA out of the nucleus

the release of messenger RNA from DNA

During transcription the DNA base sequence is transcribed into a complimentary mRNA sequence. A codon table like the one shown below lists the amino acids coded for by particular triads of mRNA bases. A segment of DNA has undergone a mutation in which one nucleotide has been changed. The original sequence was ACG and the new sequence is ACA. Use the codon table to determine whether or not this mutation will cause a change in the phenotype of the organism.

Even though the DNA sequence changed, the sequence still codes for the same amino acid, so no change in phenotype will occur.

yes, the phenotype of the organism would change because a new amino acid will be coded for.

yes, the phenotype of the organism would change because any change in the DNA sequence will cause a change in phenotype.

It is impossible to determine if a change in phenotype will occur using only the DNA sequence.

Which sequence depicts the correct order of protein synthesis within a cell?

DNA → mRNA → amino acids → proteins

DNA → amino acids → mRNA → proteins

DNA → mRNA → proteins → amino acids

DNA → proteins → amino acids → mRNA

DNA / RNA - Review

Authored by Kim Krupicka

Science

6th - 9th Grade

NGSS covered

Used 41+ times

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51 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the building blocks of DNA?

ribosomes

amino acids

nucleotides

nucleic acids

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is NOT a part of a nucleotide?

ribosome

nitrogen base

phosphate

deoxyribose

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does cytosine pair with in DNA?

adenine

uracil

thymine

guanine

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where does the nitrogen base attach on the backbone?

sugar

phosphate

hydrogen bond

nucleotide

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What holds the nitrogen bases together?

covalent bonds

peptide bonds

nitrogen bonds

hydrogen bonds

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the complementary strand to this DNA?
AAT CAG GTA CCG AAC

TTA CAG CAT GGC TTG

TTA GTC CAT GGC TTG

UUA GUC CAU GGC UUG

TTA GUC CAT CCG TTG

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does adenine pair with in RNA?

thymine

cytosine

guanine

uracil

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