Biochemistry Archives - Page 13 of 102 -

Which of the following RNAs bind to an amino acid?

Biochemistry, Protein Synthesis / admin

Question: Which of the following RNAs bind to an amino acid?
[A].

mRNA

[B].

tRNA

[C].

rRNA

[D].

hnRNA

Answer: Option B

Explanation:

No answer description available for this question.

Which of the following RNAs bind to an amino acid? Read More »

Biochemistry, Protein Synthesis

Metastasis involves

Biochemistry, Protein Structure / admin

Question: Metastasis involves
[A].

ability of cells to dissolve cellular matrix

[B].

metalloprotein levels

[C].

decreased levels of proteins that regulate metalloproteins

[D].

all of the above

Answer: Option D

Explanation:

No answer description available for this question.

Metastasis involves Read More »

Biochemistry, Protein Structure

BRACl, an inherited form of breast cancer, regulates cell division by

Biochemistry, Protein Structure / admin

Question: BRACl, an inherited form of breast cancer, regulates cell division by
[A].

binding to a DNA sequence

[B].

complexing with cyclins

[C].

binding to the cell outer membrane

[D].

binding to the protein RAD 51 which repairs DNA damage

Answer: Option D

Explanation:

No answer description available for this question.

BRACl, an inherited form of breast cancer, regulates cell division by Read More »

Biochemistry, Protein Structure

Cyclins are proteins that

Biochemistry, Protein Structure / admin

Question: Cyclins are proteins that
[A].

regulate ability of cells to invade tissue

[B].

regulate passage from one stage of cell division to another

[C].

regulate apoptosis of damaged cells

[D].

none of the above

Answer: Option B

Explanation:

No answer description available for this question.

Cyclins are proteins that Read More »

Biochemistry, Protein Structure

Over 50% of common cancers are associated with damage to a protein, p53. This protein

Biochemistry, Protein Structure / admin

Question: Over 50% of common cancers are associated with damage to a protein, p53. This protein
[A].

is a cyclin

[B].

is a tumor supressor

[C].

is an oncogene

[D].

regulates apoptosis

Answer: Option B

Explanation:

No answer description available for this question.

Over 50% of common cancers are associated with damage to a protein, p53. This protein Read More »

Biochemistry, Protein Structure

Marfan’s syndrome is thought to be a mutation affecting

Biochemistry, Protein Structure / admin

Question: Marfan’s syndrome is thought to be a mutation affecting
[A].

hemoglobin synthesis

[B].

collagen synthesis

[C].

metabolism of homogentisic acid

[D].

insufficient thyroid production

Answer: Option B

Explanation:

No answer description available for this question.

Marfan’s syndrome is thought to be a mutation affecting Read More »

Biochemistry, Protein Structure

Individuals with PKU disease are mentally retarded unless

Biochemistry, Protein Structure / admin

Question: Individuals with PKU disease are mentally retarded unless
[A].

phenylalanine in the diet is restricted

[B].

tyrosine in the diet is restricted

[C].

homogentisic acid in the diet is restricted

[D].

none of the above

Answer: Option A

Explanation:

No answer description available for this question.

Individuals with PKU disease are mentally retarded unless Read More »

Biochemistry, Protein Structure

Beta pleated sheets are examples of protein’s

Biochemistry, Protein Structure / admin

Question: Beta pleated sheets are examples of protein’s
[A].

primary structure

[B].

secondary structure

[C].

tertiary structure

[D].

quaternary structure

Answer: Option B

Explanation:

No answer description available for this question.

Beta pleated sheets are examples of protein’s Read More »

Biochemistry, Protein Structure

For the unfolding reaction of Protein G, ΔH° =210.6 kJ/mol, this means that

Biochemistry, Protein Stability / admin

Question: For the unfolding reaction of Protein G, ΔH° =210.6 kJ/mol, this means that
[A].

unfolding is favored enthalpically

[B].

folding is favored enthalpically

[C].

the entropy is positive at all temperatures

[D].

the entropy is negative at all temperatures

Answer: Option B

Explanation:

No answer description available for this question.

For the unfolding reaction of Protein G, ΔH° =210.6 kJ/mol, this means that Read More »

Biochemistry, Protein Stability

At the midpoint of a temperature transition curve,

Biochemistry, Protein Stability / admin

Question: At the midpoint of a temperature transition curve,
[A].

half of the protein is denatured

[B].

Keq = 1.0 and ΔG = 0

[C].

[Native] = [Unfolded]

[D].

All of these

Answer: Option D

Explanation:

No answer description available for this question.

At the midpoint of a temperature transition curve, Read More »

Biochemistry, Protein Stability