Which does not describe a function of proteins?

help to carry out chemical reactions

Suppose all of the ribosomes in a cell were destroyed. How would this most likely affect the process of gene expression?

The amino acids could not be joined to form a protein

The DNA double helix would be unable to separate

The cell would be unable to form mRNA strands

The tRNA molecules would bind to the wrong amino acids

Which statement describes the formation of a protein molecule?

Amino acids combine to form a protein chain

Fatty acid monomers dissolve to form a protein chain

Fatty acid monomers combine to form a protein chain

Amino acids dissolve monomers to form a protein chain.

What role do ATP molecules play in the protein synthesis process?

convert energy into hereditary information.

absorb excess energy to prevent overheating.

Where is the code found in a DNA molecule

the sequence of sugars in the backbone

the sequence of phosphates in the backbone

Which process best describes the assembly of proteins from amino acids?

Monomers are linked to form a polymer.

Atoms are linked to form a compound. .

Atoms are added to a monomer until it becomes a polymer.

Molecules are added to a compound until it becomes a monomer

How are traits passed down to offspring?

genes, located on chromosomes, found in the nucleus

chromosomes, located on genes, found in the nucleus

chromosomes, located on genes, found in the ribosomes

genes, located on chromosomes, found in the ribosomes

Unit 9 DNA and RNA

Authored by Andrew Chimenti

Biology

9th - 10th Grade

NGSS covered

Used 46+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Splits a DNA molecule into 2 strands so replication can occur

helicase

primase

DNA polymerase

ligase

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Places RNA primers on the original strand of DNA

helicase

primase

DNA polymerase

ligase

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

makes new copies of DNA by attaching nucleotides to original strand of DNA

helicase

primase

DNA polymerase

ligase

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ensures that all nucleotides are properly bonded together

helicase

primase

DNA polymerase

ligase

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Copies a DNA sequence (gene) into a strand of mRNA

RNA polymerase

tRNA

mRNA

anticodon

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A copy of a gene that gets sent to a ribosome

RNA polymerase

tRNA

mRNA

anticodon

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A molecule that carries amino acids to the ribosome

codon

tRNA

mRNA

anticodon

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Unit 9 DNA and RNA

Splits a DNA molecule into 2 strands so replication can occur

Places RNA primers on the original strand of DNA

makes new copies of DNA by attaching nucleotides to original strand of DNA

Ensures that all nucleotides are properly bonded together

Copies a DNA sequence (gene) into a strand of mRNA

A copy of a gene that gets sent to a ribosome

A molecule that carries amino acids to the ribosome

A 3 nucleotide sequence on mRNA that codes for a specific amino acid

A 3 nucleotide sequence on tRNA that matches a codon

Which is not found in both RNA and DNA?

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