SB2A

This nitrogenous base, adenine, pairs with ___________ in DNA.

• adenine

• cytosine

• guanine

• thymine

Tags

SB2.a

A DNA strand has the codon AAT. According to the chart, the corresponding messenger RNA codes for which amino acid?

• alanine

• glycine

• leucine

• serine

Tags

SB2.a

Translation of the DNA sequence AAGCTGGGA would result in

• an mRNA strand with the sequence TTCGACCCT.

• an mRNA strand with the sequence UUGCACCCU.

• a DNA strand with the base sequence TTCGACCCT.

• a sequence of three amino acids linked by peptide bonds.

Tags

NGSS.HS-LS1-1

Identify the correct sequence of molecules, as a gene goes from coded information in the nucleus, to the product the cell wants to make.

• DNA -> messenger RNA -> transfer RNA -> protein

• DNA -> transfer RNA -> messenger RNA -> protein

• DNA -> transfer RNA -> protein -> messenger RNA

• Protein -> messenger RNA -> transfer RNA -> DNA

Tags

NGSS.HS-LS1-1

The instructions for making proteins come originally from

• RNA

• ribosomes

• DNA

• amino acids

Tags

NGSS.HS-LS1-1

DNA can make exact copies of itself through replication because the nitrogen bases ALWAYS pair

• a-t and c-g.

• a-u and c-g.

• a-c and t-g.

• c-g and t-u.

Josh is assigned a project in class to make a strand of m-RNA from DNA.The DNA code that he has been assigned is CGG TCG AGT GAT. What would be the correct code for Josh to use in his transcription?

• GCC AGC TCA CTA

• GCC AGG TGA CTA

• GCC UGC TCA CTU

• GCC AGC UCA CUA

Central dogma includes the following:

The DNA codes for the production of messenger RNA (mRNA) during transcription.

In eukaryotic cells, the mRNA is processed and migrates from the _________ to the _________.

Messenger RNA carries coded information to the __________. where this information is translated and used i for protein synthesis.

Fill in the blanks within the text.

• nucleus, cytoplasm, ribosome

• nucleus, ribosome, Golgi complex

• ribosome, ER, Golgi complex

• DNA, RNA, ribosome

You inherit the DNA that composes your chromosomes from your mother and your father. You have inherited a protein that STOPS the production of an enzyme, a protein, to help you digest milk. Scientists have figured out that this protein contains an amino acid that really does say STOP whenever the enzyme starts to be produced. What nitrogen bases, found in your DNA, could be arranged to produce this STOP amino acid?

• C, G, U

• U, A, T

• A, T, G

• A, T, and C

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Translation and protein synthesis is occurring at the ribosome. If the tRNA anticodon being matched at the ribosome is AUG, what would be the matching mRNA codon?

• AUG

• TAC

• TAG

• UAC