Unit 2 Reteach

Missed Question #1:

The diagram below shows the process of translation.

What is represented by the structure labeled 2?

A. amino acid

B. ribosome

C. tRNA

D. mRNA

DNA → mRNA → Proteins = GENE EXPRESSION

Protein synthesis happens in TWO steps:

1.Transcription

2.Translation

There are THREE types of RNA

1.mRNA- carries the message

2.tRNA-brings the amino acids

3.rRNA- makes up the ribosome; joins amino acids together

Protein are produced in the RIBOSOME.

Proteins have monomers called AMINO ACIDS.

POLYPEPTIDES = Proteins

Monomer is the building block of a MACROMOLECULE

Multiple Choice

What is represented by the structure labeled 2?

• amino acid

• ribosome

• tRNA

• mRNA

Missed Question #2:

How does tRNA help in the differentiation of

structures as an organism develops?

A. tRNA creates the amino acid chain that will eventually code for

the specific protein that makes up a specific organ.

B. tRNA takes the DNA code to the ribosome so that the specific

protein can be made that makes up a specific organ

C. tRNA is stored in the nucleus and carries the genetic code to

make all of the specific structures of the body

D. tRNA packages the proteins and takes them out of the cell

DNA → mRNA → Proteins = GENE EXPRESSION

Protein synthesis happens in TWO steps:

1.Transcription

2.Translation

There are THREE types of RNA

1.mRNA- carries the message

2.tRNA-brings the amino acids

3.rRNA- makes up the ribosome; joins amino acids together

Protein are produced in the RIBOSOME.

Proteins have monomers called AMINO ACIDS.

POLYPEPTIDES = Proteins

Monomer is the building block of a MACROMOLECULE

Multiple Choice

How does tRNA help in the differentiation of

structures as an organism develops?

• tRNA creates the amino acid chain that will eventually code for

  the specific protein that makes up a specific organ.

• tRNA takes the DNA code to the ribosome so that the specific

  protein can be made that makes up a specific organ

• tRNA is stored in the nucleus and carries the genetic code to

  make all of the specific structures of the body

• tRNA packages the proteins and takes them out of the cell

Missed Question #3:

The diagram above represents the process of gene expression,

which demonstrates how a section of a chromosome becomes

an observable trait, such as the color of a flower. Which of the

following are true statements related to the process of gene

expression?

a.Protein molecules carry the code for creating traits
such as flower color.

b.Chromosomes are made of larger units called genes
which create observable characteristics.

c.Genes code for intricately folded proteins called
polypeptides.

d.DNA is divided up into smaller, functional units called
"genes" which provide the instructions for creating a
product.

e.Genotypes represent an observable trait such as color
and scent.

DNA → mRNA → Proteins = GENE EXPRESSION

Protein synthesis happens in TWO steps:

1.Transcription

2.Translation

There are THREE types of RNA

1.mRNA- carries the message

2.tRNA-brings the amino acids

3.rRNA- makes up the ribosome; joins amino acids
together

Protein are produced in the RIBOSOME.

Proteins have monomers called AMINO ACIDS.

POLYPEPTIDES = Proteins

Monomer is the building block of a MACROMOLECULE

Multiple Select

The diagram above represents the process of gene expression,

which demonstrates how a section of a chromosome becomes

an observable trait, such as the color of a flower. Which of the

following are true statements related to the process of gene

expression?

• Protein molecules carry the code for creating traits

  such as flower color.

• Chromosomes are made of larger units called genes

  which create observable characteristics.

• Genes code for intricately folded proteins called

  polypeptides.

• DNA is divided up into smaller, functional units called

  "genes" which provide the instructions for creating a

  product.

• Genotypes represent an observable trait such as color

  and scent.

Missed Question #4:

Which mutation would change the greatest number of amino

acids in a protein?

A. the deletion of a single adenine nucleotide in the middle

of a gene

B. the substitution of a thymine nucleotide with a cytosine

nucleotide near the beginning of a gene

C. the addition of the nucleotides that make up an additional

stop codon to the end of a gene

D. the insertion of a thymine, a guanine, and an adenine

nucleotide in that order at the start of a gene

Mutations are CHANGES in DNA

THREE types of mutations

1.Substitution

2.Insertion

3.Deletion

Insertion and Deletion cause the DNA to be read
WRONG. (FRAMESHIFT)

A deletion or insertion mutation in the MIDDLE of a
DNA segment will cause MORE changes to the
protein.

Multiple Choice

Which mutation would change the greatest number of amino

acids in a protein?

• the deletion of a single adenine nucleotide in the middle

  of a gene

• the substitution of a thymine nucleotide with a cytosine

  nucleotide near the beginning of a gene

• the addition of the nucleotides that make up an additional

  stop codon to the end of a gene

• the insertion of a thymine, a guanine, and an adenine

  nucleotide in that order at the start of a gene

Missed Question #5:

Which of the following are true about nucleic acids?

Select TWO correct answers.

A. Nucleic acids are made of nucleotides, which consist

of a phosphate, a 5-carbon sugar, and a nitrogen base.

B. Nucleic acids are made from repeating subunits

called amino acids.

C. Nucleic acids play a major role in the storage and

expression of genetic information.

D. Nucleic acids only include DNA.

E. Nucleic acids provide us with a quick source of

energy.

Nucleic Acids are macromolecules that STORE
genetic information.

TWO main types

1.DNA

2.RNA

Nucleic Acids have monomer called NUCLEOTIDE.

Nucleotides are made of THREE parts:

1.Phosphate

2.5 Carbon Sugar (Deoxyribose or Ribose)

3.Nitrogen Base (A, T, C, G, or U)

Multiple Select

Which of the following are true about nucleic acids?

Select TWO correct answers.

• Nucleic acids are made of nucleotides, which consist

  of a phosphate, a 5-carbon sugar, and a nitrogen base.

• Nucleic acids are made from repeating subunits

  called amino acids.

• Nucleic acids play a major role in the storage and

  expression of genetic information.

• Nucleic acids only include DNA.

• Nucleic acids provide us with a quick source of

  energy.