review. ______ and ______ cells are sex cells
TRANSCRIPT
Chapter 4
Review
______ and ______ cells are sex cells.
egg, sperm
____ produces two identical cells.
Mitosis
A(n) _____ is the code for a protein.
gene
A(n) _____ sperm is formed during meiosis.
haploid
Budding is a type of _____.
asexual reproduction
A(n) _____ is a structure in the nucleus that contains hereditary material.
chromosome
_____ produces four sex cells.
Meiosis
An error made during the copying of DNA is called a(n) _____.
mutation
As different as a lizard, a great white shark, and an eggplant are, they are all made of _____.
cells
The series of events that take place from one cell division to the next is called the _____.
cell cycle
After interphase, _____
begins. a. cell death b. cell division c. cell consumption d. cell erosion
B
Cells in your body that no longer divide are always in _____.
interphase
The process in which the nucleus divides to form two identical nuclei is known as _____.
mitosis
In asexual reproduction, the new organism will have hereditary material that is ____ the parent organism.
identical to
All of the following are true of
animal and plant cells during mitosis EXCEPT _____.
a. only animals have spindle fibers only plants have rigid cell walls only plants form cell plates only animals have centrioles
A
All of the following are composed
of body cells EXCEPT ____. a. bone b. kidney c. liver d. sperm
D
Each human skin cell has ____ pairs of chromosomes.
23
Human sex cells have ____ individual chromosomes.
23
In sexual reproduction, a new
organism is produced when ___. a. cell divide by mitosis b. sex cells combine c. an organism divides into two equal
parts d. a new organism grows from the
body of its parent
B
In ____, a new organism grows from the body of the parent organism.
budding
The number of chromosomes in a sex cell of an organism is its ___ chromosome number.
haploid
At the end of meiosis, ___ cells have been produced from one cell.
4
Proteins are made of units called ___, which are linked together in a specific order.
amino acids
The code for making proteins is cared to the ribosomes by ___.
mRNA
In DNA, adenine always pairs with ___.
thymine
For most cells, after the nucleus has divided, ___ separates and two new cells are formed.
cytoplasm
During prophase, the pairs of ____ are fully visible when viewed under a microscope.
chromatids
Organisms with eukaryotic cells asexually reproduce by ____.
cell division
The cell that forms as a result of fertilization is known as a _____.
zygote
Because sex cells do not have pairs of chromosomes, they are said to be ____.
haploid
Before mitosis begins, each ____ is duplicated.
chromosome
Regeneration is the process that uses cell division to regrow body parts.
True/False
True
During asexual reproduction two sex cells, sometimes called an egg and a sperm, come together.
False
sexual reproduction
Sex cells have half the number of chromosomes as body cells.
True
Haploid sex cells are produced by a process called meiosis.
True
Organisms with three, four, or more sets of chromosomes are known as haploid organisms.
False
polypoid
Every cell that has ever been formed in your body, or in any other organism’s body, contains DNA.
True
DNA stands for deoxyribonucleic acid.
True
RNA is made in the nucleus on a DNA pattern.
True
Sex cells have half the number of chromosomes that body cells have.
True
Haploid sex cells are produced by meiosis.
True
Organisms with three sets of chromosomes are known as haploid organisms.
False
triploid
Lists the phased of Mitosis in order.
Multiple Answers
prophase, metaphase, anaphase, telephase
List the types of RNA. (you may not use the abbreviations)
List the nitrogen bases.
adeninethyminecytosineguanine