23 Gene Expression Test

What is the function (job) of mRNA?

• to carry the set of instructions that replicate another DNA molecule in the protein chain

• to carry the set of instructions that place amino acids in sequence to make a protein

• to carry the set of instructions that places phosphate molecules in the protein chain

• to carry the set of instructions that bond hydrogens to the protein

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Specific proteins produced in a cell are directly related to the . . .

• sequence of sugars and phosphates in a cell

• sequence of nucleotides in the DNA of the cell

• number if mitochondria in the cell

• type of ribosomes in the cell

Tags

NGSS.HS-LS1-1

In the pictured diagram, what organelle carries out process 2

• ribosome

• nucleus

• mitochondria

• chloroplast

Tags

NGSS.HS-LS1-1

In the mRNA strand pictured here, how many amino acids would be coded for?

• 1

• 2

• 3

• 6

In this diagram, what is the role of structure 2?

• directs the order of the message in a protein

• carries amino acids to the ribosome

• attaches amino acids to each other in a protein

• acts as a catalyst in controlling chemical reactions

Tags

NGSS.HS-LS1-1

In this diagram, what does the structure numbered 1 represent?

• the elongating DNA strand

• the elongating transfer RNA strand

• the elongating amino acid chain

• the elongating nucleotide chain

Which choice below represents the DNA segment from which this section of mRNA was transcribed?

• ACT CCA

• TCU TTG

• ACT AAG

• ACU AAG

Identify the process and the product of the process pictured here.

• process = transcription; product = mRNA

• process = translation; product = protein

• process = replication; product = tRNA

• process = recombination; product = polymerase

Tags

NGSS.HS-LS1-1

An individual's bone, muscle, and nerve cells all contain the exact same genes. What enables each cell type to perform different (specialized) activities?

• the use of different methods of cell division

• the regulation of gene expression within each type of cell

• the mutation of genes within each cell type

Tags

NGSS.HS-LS1-4

What will happen if a base sequence of a strand of DNA is changed from A-T-G to A-T-C ?

• The tRNA will be changed from U-A-C to T-A-C

• The mRNA will be changed from T-U-C to T-A-G

• The tRNA will be changed from C-A-U to C-A-C

• The mRNA will be changed from U-A-C to U-A-G

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2