Protein Synthesis and Gene Expression

Name______Class______Date______

Protein Synthesis and Gene Expression

Work-Alikes

In the space provided, write the letter of the term or phrase that best describes how each numbered item functions.

_____1.mRNA

_____2.transcription

_____3.operator

_____4.RNA polymerase

_____5.point mutation

_____6.translation

Cause and Effect

In the space provided, write the letter of the term or phrase that best matches each cause or effect given below.

Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.

Holt Science: Biology1Protein Synthesis and Gene Expression

Name______Class______Date______

Cause

7.anticodons bond to codons

8.codons are the same in all organisms

9.______

10.______

11.introns in DNA

12.______

Effect

______

______

translation begins

lacoperon turned on

______

thousands of proteins in human cells

a.all life-forms have the same evolutionary ancestors

b.genetic flexibility

c.amino acids are brought together to form proteins

d.mRNA leaves the nucleus and enters the cytoplasm

e.few thousand exons

f.presence of lactose

Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.

Holt Science: Biology1Protein Synthesis and Gene Expression

Name______Class______Date______

Protein Synthesis and Gene Expression continued

Linkages

In the spaces provided, write the letters of the two terms or phrases that are linked together by the term or phrase in the middle. The choices can be placed in any order.

13.______RNA transcription ______

14.______rRNA ______

15.______ribosome ______

16.______translation ______

17.______binds to operator ______

18.__ repressor of lacoperon changes shape

Analogies

An analogy is a relationship between two pairs of terms or phrases written as a : b :: c : d. The symbol : is read as “is to,” and the symbol :: is read as “as.” In the space provided, write the letter of the pair of terms or phrases that best completes the analogy shown.

_____ 19. DNA : thymine ::

a.thymine : RNA c. DNA : ribose

b.DNA :uracil d. RNA : uracil

_____ 20. mRNA : transcription ::

a.DNA : transcription c. protein : translation

b.rRNA : translation d. DNA : translation

_____ 21. both DNA strands : replication ::

a.both DNA strands : transcription c.one DNA strand : transcription

b.one DNA strand : replication d.one DNA strand : translation

_____ 22. transcription in prokaryotic cells : cytoplasm ::

a.uracil : DNA

b.ribose : RNA

c.transcription in eukaryotes : cytoplasm

d.transcription in eukaryotes : nucleus

_____ 23. DNA promoter sequence : transcription ::

a.brake : car c. stop sign : traffic

c.bread : peanut butter d. track starter’s pistol : track event

Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.

Holt Science: Biology1Protein Synthesis and Gene Expression