Quiz about 8th Ch 2:3-DNA and Genetics

Question 1

The nucleic acid that carries the code for making proteins from the nucleus to the cytoplasm is called ___________________________________.

Accepted Answer

mRNA

Answer

DNA

Answer

rRNA

Answer

codon

Question 2

The nucleic acid that contains an organism's genetic material is called _________________________.

Accepted Answer

DNA

Answer

mRNA

Answer

RNA

Answer

codon

Question 3

A molecule made up of a nitrogen base, a sugar, and a phosphate group is a(n) _____________________________.

Accepted Answer

nucleotide

Answer

deoxyribose

Answer

ribonucleic

Answer

codon

Question 4

A genetic ______________________ can result from a defect or mutation in an individual's genes.

Accepted Answer

disorder

Answer

transcription

Answer

translation

Answer

replication

Question 5

The process of making a copy of DNA to make another DNA molecule is called ________________________.

Accepted Answer

replication

Answer

transcripton

Answer

translation

Answer

None of the above

Question 6

The process of making a protein from RNA is called_____________________________.

Accepted Answer

translation

Answer

replication

Answer

duplication

Answer

transcription

Question 7

Transcription is the process of making

Accepted Answer

mRNA from DNA

Answer

chemicals that link chains of amino acide

Answer

DNA without the use of nitrogen bases

Answer

mutations

Question 8

A change is a nucleotide sequence of a gene is a _____________________.

Accepted Answer

mutation

Answer

duplication

Answer

replication

Answer

transcription

Question 9

A condition that results from a defect or mutation in an individual's genes is a(n) ___________________________.

Accepted Answer

genetic disorder

Answer

replication

Answer

translation

Answer

transcriptionn

Question 10

Which of the following are examples of genetic mutations?

Accepted Answer

Cystic Fibrosis

Answer

Type O blood type

Answer

attached earlobes

Answer

None of the answers are correct.

Question 11

What is the role of mRNA in protein synthesis?

Accepted Answer

carries the code from the nucleus to the cytoplasm that determines the order of amino acids in a protein.

Answer

carries amino acids to ribosomes.

Answer

helps form the chemical bonds that attach amino acids to one another as they form chains.

Answer

helps in the DNA replication

Question 12

What is the role of tRNA in protein synthesis?

Accepted Answer

carries amino acids to ribosomes.

Answer

helps form the chemical bonds that attach amino acids to one another as they form chains.

Answer

helps in the DNA replication

Answer

carries the code from the nucleus to the cytoplasm that determines the order of amino acids in a protein.

Question 13

What is the role of rRNA in protein synthesis?

Accepted Answer

helps form the chemical bonds that attach amino acids to one another as they form chains.

Answer

carries amino acids to ribosomes.

Answer

helps in the DNA replication

Answer

carries the code from the nucleus to the cytoplasm that determines the order of amino acids in a protein.

Question 14

There are 3 types of genetic mutations. Deletion, insertion and substitution. Which of the following is the best description of a deletion mutation?

Accepted Answer

one or more nitrogen bases is left out of the DNA;

Answer

one or more nitrogen bases is added to the DNA

Answer

one or more nitrogen bases is replaced by a different nitrogen base

Answer

the chromosome just didn't get copied in replication

Question 15

There are 3 types of genetic mutations. Deletion, insertion and substitution. Which of the following is the best description of a substitution mutation?

Accepted Answer

one or more nitrogen bases is replaced by a different nitrogen base

Answer

one or more nitrogen bases is left out of the DNA;

Answer

one or more nitrogen bases is added to the DNA

Answer

the chromosome just was substituted during replication

Question 16

There are 3 types of genetic mutations. Deletion, insertion and substitution. Which of the following is the best description of a insertion mutation?

Accepted Answer

one or more nitrogen bases is added to the DNA

Answer

one or more nitrogen bases is left out of the DNA;

Answer

one or more nitrogen bases is replaced by a different nitrogen base

Answer

the chromosome just copied an extra time during replication

Question 17

DNA consists of a sugar, phosphate group and _____ nitrogen bases.

Accepted Answer

4

Answer

1

Answer

2

Answer

3

Question 18

__________________ copies a DNA molecule to make another DNA, and produces two identical strands of DNA.

Accepted Answer

replication

Answer

translation

Answer

transcription

Answer

mitosis

Question 19

The 4 nitrogen bases found in DNA are:

Accepted Answer

adenine, guanine, cytosine and thymine

Answer

adenine, guanine, uracil, and thymine

Answer

adenine, cytosine, guanine and francine

Answer

adenine, duracell, cytosine and thymine

Question 20

The DNA of each cell carries a complete set of genes that provides instructions for making all the ___________ a cell requires.

Accepted Answer

proteins

Answer

ribosomes

Answer

genes

Answer

chromosomes

Question 21

Segments of DNA that are not parts of genes are often called ____ DNA.

Accepted Answer

junk

Answer

extra

Answer

start and stop

Answer

mutated

Question 22

Which of the following statements about DNA nitrogen bases is false?

Accepted Answer

cytosine bonds with adenine

Answer

adenine bonds with thymine

Answer

guanine bonds with cytosine

Answer

thymine bonds with adenine

Question 23

A ____________ is a molecule made of a nitrogen base, a sugar, and a phosphate group.

Accepted Answer

nucleotide

Answer

nucleus

Answer

chromatin

Answer

ribosome

Question 24

The process of making mRNA from DNA is ______________.

Accepted Answer

transcription

Answer

replication

Answer

translation

Answer

mitosis

Question 25

The process of making a protein from RNA is called _________________.

Accepted Answer

translation

Answer

transcription

Answer

replication

Answer

mitosis

Question 26

The order of the nitrogen bases in mRNA determines the order of the ______________ in a protein.

Accepted Answer

amino acids

Answer

ribosomes

Answer

genes

Answer

nucleotides

Question 27

Each series of three nitrogen bases on mRNA is called a (n) _________.

Accepted Answer

codon

Answer

gene

Answer

protein

Answer

anticodon

Question 28

A mutation is a change in the ______________ sequence (order).

Accepted Answer

nucleotide

Answer

ribosomes

Answer

tRNA

Answer

sugar- phosphate group

Question 29

Mutations can have negative effects, positive effects, or no effect on traits.

Accepted Answer

True

Answer

False

Question 30

The diagram below shows one strand of a DNA molecule with six bases shown. A strand of mRNA has just been created from those bases that will be used to make part of a protein. What will be the mrRNA sequence for the codon labeled #1.

Accepted Answer

UCC

Answer

None of these

Answer

UAA

Answer

UCG

Question 31

The diagram below shows one strand of a DNA molecule with six bases shown. A strand of mRNA has just been created from those bases that will be used to make part of a protein. What will be the mrRNA sequence for the codon labeled #2.

Accepted Answer

GAU

Answer

AUT

Answer

none of these

Answer

TUT

Question 32

Each of the following is a form of mutation EXCEPT_________.

Accepted Answer

replication

Answer

substitution

Answer

insertion

Answer

deletion

Question 33

How much DNA in human chromosomes does not form genes and is considered junk DNA?

Accepted Answer

97%

Answer

27%

Answer

57%

Answer

77%

Question 34

The letter A in the diagram represents a(n)_________.

Accepted Answer

sugar-phosphate group

Answer

nucelotide

Answer

base

Answer

gene

Question 35

The letter B in the diagram represents a(n)_________.

Accepted Answer

base

Answer

nucelotide

Answer

sugar-phosphate group

Answer

gene

Question 36

The letter c in the diagram represents a(n)_________.

Accepted Answer

nucelotide

Answer

base

Answer

sugar-phosphate group

Answer

gene

8th Ch 2:3-DNA and Genetics

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