Protein Synthesis Review

Front

Location in the cell of TRANSCRIPTION?

Back

Nucleus

Front

(TRANSCRIPTION STEPS)

Transcription begins when ___ __________ unwinds the DNA helix.

Back

RNA Polymerase

Front

(TRANSCRIPTION STEPS)

RNA polymerase then breaks the hydrogen bonds between the nitrogen bases, which opens or "______" the DNA .

Back

"unzips"

Front

(TRANSCRIPTION STEPS)

___ side of the unzipped DNA molecule now serves as a template/guide for making mRNA.

Back

One

Front

(TRANSCRIPTION STEPS)

mRNA nucleotides attach to one side of the DNA template.

(A with_ )

&

(C with_ )

Back

A with U (Uracil)

&

C with G (Guanine)

Ur Apple!

Cars with Garage!

Front

(TRANSCRIPTION STEPS)

The mRNA strand is released from the ___

Back

DNA

Front

(TRANSCRIPTION STEPS)

The DNA strand closes and twists back into a ______ _____.

Back

double helix

Front

(TRANSCRIPTION STEPS)

_______ (non-coding regions) are cut out and removed.

Back

INTRONS

INTRons go "IN TRash"

Front

(TRANSCRIPTION STEPS)

The _____ (coding regions) are joined together.

Back

EXONS

"EXcellent EXons"

Front

(TRANSCRIPTION STEPS)

The edited strand of mRNA leaves the _______

Back

Nucleus