-
The regular sequence of growth and division that cells undergo is known as the _____________.
C. cell cycle
-
Which of the following is NOT one of the three main stages of the cell cycle:
A. nucleation
-
During ______________, the cell
- grows to its mature size
- makes a copy of its DNA
- prepares to divide into two cells
B. interphase
-
During the first part of interphase, the cell _____________ in size.
C. doubles
-
The second part of interphase is called ____________.
D. replication
-
________________ is the process by which the DNA makes an identicalcopy of itself.
C. replication
-
_____________ is the stage in which the cell's nucleus divides into two new nuclei.
A. Mitosis
-
The mitosis phase is divided into ________ parts.
A. four
Prophase, metaphase, anaphase, and telophase
-
During ____________, one copy of the DNA is distributed to each of the two daughter cells.
D. mitosis
-
The final stage of the cellcycle is ____________.
e. duplicaiton
A. cytokinesis
-
During this stage of the cell cycle, the cytoplasm divides, distributing the organelles into each of the two new cells.
C. cytokinesis
-
During cytokinesis in an animal cell, the ______________ squeezes together and then pinches off to form the two new cells.
C. cell membrabe
-
Since a plant has a rigid cell wall, cytokinesis is accomplished when a __________ cell plate forms in the middle of the town new cells.
A. cell plate
-
DNA carries all the cell's instructions.
TRUE
FALSE
TRUE
-
DNA is passed from a parent cell to its ________ cell.
B. daughter
-
DNA looks like a(n) ________________.
C. twisted ladder
-
The twisted ladder of DNA is called a _______________.
C. double helix
-
One of the side of the DNA ladder is made up of moleucles of sugar called ________________.
C. deoxyribose
-
On the DNA ladder, deoxyribose alternate with molecueles known as _____________.
C. phosphates
-
Each rung of the DNA ladder is made up of two pairs of molecules called __________ bases.
C. nitrogen
-
How many kinds of nitrogen bases are there?
E. 4
adenine, thymine, guanine, and cytosine
-
Capital letters are used to represent they nitrogen bases. The letter A stands for....
B. adenine
-
Capital letters are used to represent they nitrogen bases. The letter T stands for....
C. thymine
-
Capital letters are used to represent they nitrogen bases. The letter G stands for....
D. guanine
-
Capital letters are used to represent they nitrogen bases. The letter C stands for....
B. cytosine
-
Adenine (A) only pairs with...
C. thymine (T)
-
Guanine (G) only pairs with ......
A. cytosine (c)
-
DNA replication begins when the two sides of the DNA molecule unwind and separate or ____________.
C. unzip
-
New DNA molecules are created from the unzipped DNA when _________ bases attach to the open sides of the DNA ladder.
D. nitrogen
-
When both unzipped DNA strands are paired up with the nitrogen bases two identical DNA molecules have been formed.
True
False
True
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