BIOL 101 QUIZ 4

Question 1

3.2 out of 3.2 points

Which of the following is not a recognized organ system within the human body?

the ovarian follicle system

Question 2

3.2 out of 3.2 points

The genetic code is said to be degenerate. This means that

most amino acids in the code are specified by more than one codon.

Question 3

3.2 out of 3.2 points

The ________________ is often represented as a chart in which a specific sequence of bases in mRNA (a codon) is used to represent each amino acid building block found in the world of proteins.

genetic code

Question 4

3.2 out of 3.2 points

Life perpetuates itself at the cellular level

b) and d) above

Question 5

0 out of 3.2 points

The ______________ is a highly differentiated brain structure that is too specialized to be considered an “early brain region”.

diencephalon

Question 6

3.2 out of 3.2 points

Which of the following sequences best represents the overall flow of information in a cell?

transcription, pre-mRNA processing, translation, protein processing, export

Question 7

3.2 out of 3.2 points

Peptide bonds are formed during the __________ stage of translation.

elongation

Question 8

3.2 out of 3.2 points

A sequence of human cell divisions accompanied by some growth and cell differentiation convert an early ___________ into a hollow ball of cells called a _________.

morula, blastocyst

Question 9

3.2 out of 3.2 points

What are the essential resources that a daughter cell must get from a parent cell or from nature in order to succeed in living life?

all the above

Question 10

3.2 out of 3.2 points

Which of the following terms would not be used to describe an aspect of the three-dimensional adult form?

auricular

Question 11

3.2 out of 3.2 points

Which of the following choices lists in order the stages of mitosis?

prophase, metaphase, anaphase, telophase

Question 12

3.2 out of 3.2 points

The term “transcription” means the process of

reading a base sequence in DNA to generate a complementary base sequence in RNA (mRNA).

Question 13

3.2 out of 3.2 points

Sensory and motor functions in the mature human adult are controlled by the

cerebrum.

Question 14

3.2 out of 3.2 points

Which of the following phrases best describes the function of ribosomal RNA (rRNA)?

It helps the ribosome to recognize how and where to begin working.

Question 15

3.2 out of 3.2 points

The de-condensation of visible chromosomes back into chromatin fibers is a defining feature of which phase of the cell cycle?

telophase

Question 16

3.2 out of 3.2 points

Which of the following is not a role of the ribosome or its subunits?

generating ATP energy to be used by the cell in biosynthesis

Question 17

3.2 out of 3.2 points

The nuclear membrane of the cell disintegrates during which phase of the cell cycle?

prophase

Question 18

3.2 out of 3.2 points

What is the role of tRNA synthetase?

bonding the correct amino acid to its corresponding tRNA molecule.

Question 19

3.2 out of 3.2 points

There are more than four kinds of amino acids in proteins. Each kind of amino acid must be coded for in mRNA. Thus, a short sequence of mRNA bases called a(n) _________ is used to code for each amino acid in the translation process.

codon.

Question 20

3.2 out of 3.2 points

Genes that normally direct the inhibition of cell division regulatory pathways are called

tumor suppressor genes.

Question 21

3.2 out of 3.2 points

The brain most directly interacts with and controls

b. and c. above

Question 22

3.2 out of 3.2 points

_____________ is a disease state characterized by cells that divide uncontrollably and no longer respect their confinement within their tissue of origin.

cancer

Question 23

3.2 out of 3.2 points

A dominant control over the endocrine system in mature human adults is exerted by the

hypothalamus.

Question 24

3.2 out of 3.2 points

Why is the word “translation” used for protein production? Protein production is the process of

converting the language of RNA nucleotides into the language of amino acids in proteins.

Question 25

3.2 out of 3.2 points

The two major problems that transcription solves for the cell are

a. and c.