Protein Synthesis B.7B

Protein synthesis occurs in two steps: the first step is (a)   and the second step is (b)   . Transcription is the process by which the enzyme (c)   makes messenger RNA (mRNA), using DNA as a template (DNA => mRNA). Transcription occurs in three steps: initiation, elongation, and

termination. Transcription occurs in the (d)   of eukaryotic cells and in the cytoplasm of prokaryotes.

The mRNA produced during transcription carries the genetic information that codes for a (e)   .

• transcription
• translation
• RNA polymerase
• protein
• nucleus
• replication
• cell membrane
• helicase

Tags

B.7B

Match these nucleic acids with their function

• tRNA

• Holds the code for how to make all the proteins in an organism

• rRNA

• Genetic code stored in codons, copied from a template of one gene in the DNA

• DNA

• Reads the codon from the nucleus and is the location for translation

• mRNA

• Contains the complimentary anticodon and brings a specific amino acid to the ribosome

Tags

B.7A

Categorize these characteristics of nucleic acids

Groups:

(a) DNA

,

(b) DNA and RNA

,

(c) RNA

• Small-Hundreds to thousands of nucleotides

• Ribose Sugar

• 
• Only found in the nucleus

• 
• Deoxyribose Sugar

• Large-Millions of nucleotides

• Thymine

• Double stranded

• Made of nucleotides

• Adinine

• Can be found in nucleus and cytoplasm

• Cytosine

• Single stranded

• The sequence of nitrogen bases stores the code for traits

• Guanine

• Uracil

Tags

NGSS.HS-LS1-1

Label the diagram

c

b

d

e

a

amino acids

tRNA

anticodon

Ribosome

mRNA

nucleus

DNA

Tags

B.7B

Label the diagram using the words provided by putting them in the correct box:

a

b

c

d

e

Transcription

mRNA

DNA

Protein

Translation

Answer explanation

Tags

6C

Match the following vocabulary words with their definition.

• nucleotide

• Monomer of a nucleic acid, made of phosphate group, sugar, and nitrogen base

• amino acid

• Monomer of a protein; 20 different types

• gene

• Section of DNA that codes for one protein

• genome

• All the DNA in an organism

• codon

• Three nucleotides that code for one amino acid

Tags

B.7B

Place the following amino acids in order according to the code found in the mRNA sequence:

AUG GAC AAG UCG UAA

• Methionine

• Aspartate

• Lysine

• Serine

• Stop

Tags

B.7B