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