Question 1

How many three-letter combinations are present in the genetic code?

Accepted Answer

A) 32 
B) 64 
C) 16 
D) 88 
A) 32 
B) 64 
C) 16 
D) 88

Question 2

Match between columns
                        Premises:  RNA that carries genetic information from the DNA in the cell nucleus to the site of protein synthesis in the cytoplasm

Accepted Answer

The Answer of Ribosome and Ribosomal RNA and Transfer RNA is...

Question 3

In RNA, the complement to the base guanine is cystine.

Accepted Answer

A) True 
 B)False

Question 4

With recombinant DNA work, a type of DNA has been used as a means of introducing a new gene into bacteria.  Shown below, this type of DNA is referred to as a(n)_____.

Accepted Answer

A) plasmid 
B) vector 
C) DNA polymerase 
D) intron 
A) plasmid 
B) vector 
C) DNA polymerase 
D) intron

Question 5

The monomers that are chemically linked together to form nucleic acids are called

Accepted Answer

A) purine bases. 
B) sugar-phosphoric residues. 
C) nucleotides. 
D) nucleosides. 
A) purine bases. 
B) sugar-phosphoric residues. 
C) nucleotides. 
D) nucleosides.

Question 6

The genetic code is based on a total of ___ codons.

Accepted Answer

A) 3 
B) 9 
C) 16 
D) 64 
A) 3 
B) 9 
C) 16 
D) 64

Question 7

Each amino acid in a protein synthesis is specified by only one codon in the genetic code.

Accepted Answer

A) True 
 B)False

Question 8

Adenine is a purine base

Accepted Answer

A) True 
 B)False

Question 9

What symptoms should an individual that has been stung by an insect exhibit that indicate anaphylactic shock?

Accepted Answer

A) the area about the sting becoming red and a tightening of the skin 
B) shortness of breath and swelling in the throat 
C) coughing, headache, and nausea 
D) All of these responses are symptoms of anaphylactic shock. 
A) the area about the sting becoming red and a tightening of the skin 
B) shortness of breath and swelling in the throat 
C) coughing, headache, and nausea 
D) All of these responses are symptoms of anaphylactic shock.

Question 10

Which nucleic acid carries the codons?

Accepted Answer

A) DNA 
B) mRNA 
C) tRNA 
D) rRNA 
A) DNA 
B) mRNA 
C) tRNA 
D) rRNA

Question 11

Genetically modified foods have been produced and used by people for centuries.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following correctly describes the segment of the nucleic acid shown?

Accepted Answer

A) This is a segment of DNA. 
B) It has a 3' → 5' phosphodiester linkage. 
C) The sugar involved is deoxyribose. 
D) All of the responses are correct. 
A) This is a segment of DNA. 
B) It has a 3' → 5' phosphodiester linkage. 
C) The sugar involved is deoxyribose. 
D) All of the responses are correct.

Question 13

​ Explain how one DNA molecule differs from another.

Accepted Answer

In a DNA molecule, the sugar-phosphate c

Question 14

Which of the following drugs should a mother avoid while pregnant?

Accepted Answer

A) ethanol 
B) opiates 
C) testosterone 
D) all the choices 
A) ethanol 
B) opiates 
C) testosterone 
D) all the choices

Question 15

The base shown below is one of the pyrimidine bases found in nucleic acids.

Accepted Answer

A) True 
 B)False

Question 16

The DNA molecule contains complementary nitrogen bases. There are four bases, but they pair as A-T and G-C with no cross pairing. How is this accomplished?

Accepted Answer

A) A and G are polar leaning heavily to the positive. T and C are negative. A-G and T-C repel each other and cannot pair. 
B) A and G do not have their polar sites in the appropriate location to pair, and the same is true of T and C. 
C) A and T have two matching but opposite polar sites. G and C have 3 polar sites. The two poles will not attract and maintain attraction for three poles. 
D) There is more than one correct response. 
A) A and G are polar leaning heavily to the positive. T and C are negative. A-G and T-C repel each other and cannot pair. 
B) A and G do not have their polar sites in the appropriate location to pair, and the same is true of T and C. 
C) A and T have two matching but opposite polar sites. G and C have 3 polar sites. The two poles will not attract and maintain attraction for three poles. 
D) There is more than one correct response.

Question 17

The function of the mRNA molecule is to carry information from the DNA in the nucleus of the cell to locations outside the nucleus.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following represents the correct order in the flow of genetic information?

Accepted Answer

A) mRNA → DNA → proteins 
B) mRNA → tRNA → proteins 
C) DNA → mRNA → proteins 
D) rRNA → mRNA → proteins 
A) mRNA → DNA → proteins 
B) mRNA → tRNA → proteins 
C) DNA → mRNA → proteins 
D) rRNA → mRNA → proteins

Question 19

DNA and RNA are polymers produced from monomers containing specific sugar molecules.

Accepted Answer

A) True 
 B)False

Question 20

To which of the following do amino acids bind during protein synthesis?

Accepted Answer

A) DNA 
B) tRNA 
C) rRNA 
D) mRNA 
A) DNA 
B) tRNA 
C) rRNA 
D) mRNA

Exam 21: Nucleic Acids and Protein Synthesis

How many three-letter combinations are present in the genetic code?

In RNA, the complement to the base guanine is cystine.

With recombinant DNA work, a type of DNA has been used as a means of introducing a new gene into bacteria. Shown below, this type of DNA is referred to as a(n)_____.

The monomers that are chemically linked together to form nucleic acids are called

The genetic code is based on a total of ___ codons.

Each amino acid in a protein synthesis is specified by only one codon in the genetic code.

Adenine is a purine base

What symptoms should an individual that has been stung by an insect exhibit that indicate anaphylactic shock?

Which nucleic acid carries the codons?

Genetically modified foods have been produced and used by people for centuries.

Which of the following correctly describes the segment of the nucleic acid shown?

​ Explain how one DNA molecule differs from another.

Which of the following drugs should a mother avoid while pregnant?

The base shown below is one of the pyrimidine bases found in nucleic acids.

The DNA molecule contains complementary nitrogen bases. There are four bases, but they pair as A-T and G-C with no cross pairing. How is this accomplished?

The function of the mRNA molecule is to carry information from the DNA in the nucleus of the cell to locations outside the nucleus.

Which of the following represents the correct order in the flow of genetic information?

DNA and RNA are polymers produced from monomers containing specific sugar molecules.

To which of the following do amino acids bind during protein synthesis?

Matter, Measurements, and Calculations

Atoms and Molecules

Electronic Structure and the Periodic Law

Forces Between Particles

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Acids, Bases, and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, Phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nutrition and Energy for Life

Carbohydrate Metabolism

Lipid and Amino Acid Metabolism

Body Fluids

Filters

Explain how one DNA molecule differs from another.