AnswersMI-Biology A-CRLab: Diffusion Across a Semi-permeable Membrane

Protein Synthesis Answers

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Which process is part of transcription?

A
DNA is copied to create a second DNA strand.
B
mRNA codons and tRNA anticodons assemble amino acids.
C
DNA is unzipped with the aid of DNA polymerase.
D
mRNA is synthesized from a strand of DNA.
2
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Which provides the master code needed for protein synthesis?

A
DNA
B
RNA
C
mRNA
D
tRNA
3

Geoffrey made a mistake in listing the main steps of translation in order as elongation, initiation, and termination. Which statement describes his error?

A
Initiation occurs before elongation.
B
Termination is not one of the steps.
C
Termination occurs before elongation.
D
Elongation is not one of the steps.
4

What is the function of the protein keratin?

A
to provide support and structure for cells in hair, skin, and nails
B
to fight infections caused by bacteria and viruses
C
to increase chemical reaction rates in the digestive system
D
to transmit chemical signals throughout the body
5

What is created between 2 amino acids during translation?

A
DNA polymerase
B
peptide bond
C
hydrogen bond
D
RNA polymerase
6

During which process is mRNA converted into a sequence of amino acids for protein production?

A
transcription
B
translation
C
DNA replication
D
mRNA synthesis
7

What is the function of tRNA?

A
to code for protein synthesis
B
to carry the synthesized genetic information from the nucleus to the ribosomes
C
to synthesize proteins from RNA
D
to bring amino acids to the ribosomes to be assembled into proteins
8

Which statement best summarizes what happens during transcription?

A
A DNA template is used to create an mRNA strand.
B
An mRNA template is used to create a DNA strand.
C
A DNA template is used to create a ribosome.
D
An mRNA template is used to create a tRNA strand.
9

Albumin is a protein found in blood that helps to regulate amount of fluids in the body. What is the main function of albumin?

A
to provide structure
B
to fight disease
C
to maintain homeostasis
D
to regulate cell reactions
10

Which statement describes the relationship between transcription and translation?

A
The proteins made during transcription are used to make RNA during translation.
B
The proteins made during transcription are used to make DNA during translation.
C
The RNA made during transcription is used to make proteins during translation.
D
The DNA made during transcription is used to make proteins during translation.

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