Type
Matching Worksheet
Description

one characteristic of life Deoxyribonucleic acid
long, slightly acidic molecules made up of small monomers of nucleotides nucleic acids
the building block of nucleic acids; includes a 5-carbon sugar, a phosphate group, and a nitrogenous base Nucleotide
weak chemical forces that hold complementary base pairs together in DNA Hydrogen bonds
the bonding between A and T nucleotides and G and C nucleotides in DNA Base pairing
parallel strands of DNA that run in opposite directions. Antiparallel
the process of duplicating DNA before cell division. Replication
enzyme that “unzips” a molecule of DNA into two strands during DNA replication Helicase
enzyme that lays down RNA primers during replication; serves as a starting point for DNA polymerase Primase
enzyme that joins nucleotides to synthesize a new complementary strand of DNA during DNA replication. DNA polymerase
the tips of eukaryotic chromosomes Telmeres:
the process by which a cell divides into two new daughter cells Cell division
the production of genetically identical offspring from a single parent Asexual reproduction
the production of genetically variable offspring from two reproductive cells Sexual reproduction
genetic information tightly bundled into packages of DNA Chromosome
substance found in eukaryotic chromosomes that consists of DNA tightly coiled around histones Chromatin
one of two identical sister parts of a duplicated chromosome Chromatids
region of a chromosome where the two sister chromatids attach Centromere
structure in an animal cell that helps to organize cell division. Centrioles
the series of events that take place as a cell grows and divides Cell cycle
first and longest phase of mitosis; genetic material in the nucleus condense and chromosomes become visible Prophase
phase of mitosis in which the chromosomes line up in the center of the cell Metaphase
phase of mitosis in which the chromosomes separate and move to opposite ends of the cell Anaphase
phase of mitosis in which the distinct individual chromosomes begin to spread out into a tangle of chromatin Telophase
the division of cytoplasm to form two separate cells Cytokinesis

Mitosis Crossword

Type
Crossword
Description

the process of a cell dividing into two new daughter cells cell division
type of reproduction in which cells from two parents unite to form the first cell of a new organism sexual reproduction
substance found in eukaryotic chromosomes that consists of DNA tightly coiled around histones chromatin
period of the cell cycle between cell divisions interphase
phase of mitosis in which the distinct individual chromosomes begin to spread out into a tangle of chromatin telophase
one of two identical “sister” parts of a duplicated chromosome Chromatid
phase of mitosis in which the chromosomes separate and move to opposite ends of the cell anaphase
process of reproduction involving a single parent that results in offspring that are genetically identical to the parent asexual reproduction
threadlike structure of DNA and protein that contains genetic information chromosome
series of events in which a cell grows, prepares for division, and divides to form two daughter cells cell cycle
phase of mitosis in which the chromosomes separate and move to opposite ends of the cell anaphase
part of eukaryotic cell division during which the cell nucleus divides mitosis
division of the cytoplasm to form two separate daughter cells cytokinesis
first and longest phase of mitosis in which the genetic material inside the nucleus condenses and the chromosomes become visible prophase
structure in an animal cell that helps to organize cell division centriole
phase of mitosis in which the chromosomes line up across the center of the cell metaphase

Cell Division - Ch. 10 Biology Crossword

Type
Crossword
Description

The process by which a cell divides into two daughter cells cell division
The production of genetically identical offspring from a single parent is known as asexual reproduction asexual reproduction
Offspring produced by sexual reproduction inherit some of their genetic information from each parent sexual reproduction
DNA, genetic information, that is bundled and packaged in the cell in preparation for cell division (rather than being in long strands of chromatin) chromosome
DNA exists in the nucleolus in chromatin form; "beads on a string" the beads are histone proteins and the the string is the DNA chromatin
A series of events where a cell grows, prepares for division and divides to form two daughter cells cell cycle
Part of cell cycle where the cell grows, DNA replicates, and the organelles and molecules produced for cell division interphase
Duplication of the cell's genetic information which is described by four phases mitosis
First described phase of mitosis, takes the longest, the genetic material inside the nucleus condenses and the duplicated chromosomes become visible. Outside the nucleus, a spindle starts to form prophase
Where the duplicated strands of DNA attach centromere
One of the duplicated strands of DNA, sometimes the two strands are referred to sister chromatids chromatid
Tiny paired structures where spindles come from to attach to the centromere to centrioles
The second phase of mitosis; the centromere of the duplicated chromosomes line up across the center of the cell. Spindle fibers connect the centromere of each chromosome to the the two poles of the spindle metaphase
Third event of mitosis; the chromosomes separate and move along spindle fibers to opposite ends of the cell anaphase
The fourth and final phase of mitosis; the chromosomes, which were distinct and condensed, begin to spread out into a tangle of chromatin; the nuclear envelope re-forms around each cluster of chromosomes . the spindle breaks apart and a nucleolus becomes visible in each daughter nucleus. Mitosis is complete. telophase
The splitting of one cell into two; occurs after the phases of mitosis are complete; the process of cytokinesis is different in plant and animal cells cytokinesis
Proteins that regulate the timing of the cell cycle; these proteins are inside and outside the cell cyclins
Proteins that stimulate the growth and division of cells; especially important proteins during embryonic development and wound healing growth factors
A process of programmed cell death; cells end their life cycle in one of two ways: damage or programmed apoptosis
A mass of body cells that do not respond to the signals that regulate the growth of most cells cancer
A mass of cells; can be benign which means the mass doesn't spread; or malignant which means the mass will spread and start new tumors in other areas of the body tumor

Cell Division Crossword

Type
Crossword
Description

Genetic information is bundled into packages of DNA Chromosomes
The chromosomes in eukaryotic cells form a close association with histones, a type of protein. Chromatin
Biologists described the life of a cell as one cell division after another separated by an "in-between" period of growth. Interphase
First stage of the process,division of the cell nucleus. Mitosis
The second stage, the division of the cytoplasm. Cytokinesis
First phase of mitosis, usually the longest and may take up half of the total time required to complete mitosis. Prophase
Duplicated strands of the DNA molecule canbe seen to be attached along their length at an area. Centromere
Each DNA strand in the duplicated chromosome is referred to as a sister chromatid. Chromatid
Spindle fibers extend from a region called the centrosome, where tiny paried structures are located. Centrioles
Second phase of mitosis, is generally the shortest. Metaphase
Third phase of mitosis, begins when sister chromatids separate and begin to move apart. Anaphase
The fourth and final phase of mitosis. Telophase

Mitosis and Meiosis Crossword

Type
Crossword
Description

The mitotic stage that follows metaphase; duplicated chromosomes separate at the centromere and migrate toward the mitotic centers. Anaphase
Reproduction involving only one parent Asexual reproduction
The part of a chromosome where the chromatids join together. Centromere
In animal cells, a cytoplasmic organelle that organizes the mitotic spindle fibers during cell reproduction. Centriole
One of the two strands that make up chromosomes seen in prophase and metaphase that have duplicated their DNA during interphase. Chromatid
An exchange of chromosomal material between homologous pairs that occurs during prophase 1 of meiosis. Crossing Over
Having two of each chromosome. Diploid
The only cells that undergo meiosis. Germ Cells
The actual number of different types of chromosomes a cell possesses. Haploid
The phase most cells spend 95% of their time in. Interphase
How sperm and egg cells are created. Meiosis
The stage of mitosis where duplicated chromosomes line up along the center of the mitotic spindle. Metaphase
The first stage of mitosis when the nuclear membrane is absorbed into the cell. Prophase
Body cells. Somatic
The last stage of mitosis when the chromosomes separate and the nuclear membrane reforms. Telophase
Microtubules visible during cell division that are involved in separating chromosomes. Spindle Fibers
The mitotic process that results int he formation of sperm cells. Spermatogenesis
The mitotic process that results in the formation of egg cells. Oogenesis
Cytoplasmic division that follows the division of the nucleus. Cytokinesis
One egg cell. Ovum

Mitosis Crossword Puzzle

Type
Crossword
Description

Process by which a cell divides into new daughter cells. Cell division
type of reproduction in which cells form two parents unite to form the first cell of a new organism. sexual reproduction
the production of genetically identical offspring from a single parent. Asexual reproduction
Genetic info. that is bundled into packages of DNA chromosomes
the chromosomes in eukaryotic cells from a close association with histones, a type of protein. Chromatin
A series of events in which a cell grows, prepares for division, and divides to form two daughter cells. Cell cycle
One cell division after another separated by an "in-between" period of growth. interphase
Part of eukaryotic cell division during which the cell nucleus divides. Mitosis
The first phase of mitosis where the genetic material inside the nucleus condenses and the duplicated chromosomes become visible prophase
one of two identical "sister" parts of a duplicated chromosomes Chromatid
Spindle fibers extend from a region called the centrosome, where tiny paired structures are located centrioles
the second phase of mitosis where the centromeres of the duplicated chromosomes line up across the center of the cell metaphase
the third phase of mitosis where the chromosomes separate and move along spindle fibers to opposite ends of the cell. anaphase
the fourth and final phase of mitosis where the chromosomes, which were distinct and condensed begin to spread out into a tangle of chromatin telophase
region of a chromosome where the two sister chromatids attach. Centromere
division of the cytoplasm to form two separate daughter cells Cytokinesis
disorder in which some of the body's cells lose the ability to control growth cancer
mass of rapidly dividing cells that damage surrounding tissue tumor
unspecialized cell that can give rise to one or more types of specialized cells. stemcell

Cell Growth and Division Crossword

Type
Crossword
Description

The last phase of mitosis. It is when the chromosomes start to become a chromatin and the nucleolus becomes visible. Telophase
Series of events in which a cell grows, prepares for division, and divides to form two daughter cells Cell Cycle
The second phase of mitosis, and it only takes a couple minutes. It is when the chromosomes line up across the middle of the cell. Metaphase
Division of the cell's cytoplasm. Cytokinesis
Division of the cell's nucleus. Mitosis
Surface area will increase slower that volme SA to Volume
Cells that are experiencing uncontrolled growth and division. Cancer
The first phase of mitosis and it's the longest lasting phase.It is when the chromosomes become visible and they attach to the spindle and coil up. Prophase
The granular material in the nucleus. Chromatin
Contains DNA that is passes from an old generation of cells to another. Chromosomes
All organisms cells have a different amount of chromosomes. Chromosome Count
Synthesis phase. DNA Replication
Lifetime of the cell when the cell grows and prepares to divide Interphase
A part of two identical sister parts of duplicated chromosomes. Chromatid
The area where the chromatids are attached to each other. Centromere
The third phase of mitosis. It is when the sister chromatids separate and move to opposite poles. Anaphase

chapter 12 biology Crossword

Type
Crossword
Description

sequence of dna with proteins and traits gene
carries copies if instructions messenger rna
transfers amino acids transfer rna
helps assemble proteins ribosomal rna
dna copied into a rna sequence transcription
binds to dna and separates strands during transcriptions rna polymerase
dna enzyme binds to make rna promoter
not involved in coding for proteins intron
3 nucleotide sequence on messenger rna codon
decoding of mrna into a chain translation
trna molecule that are complimentary to a mrna codon anticodon
dna coiled in around proteins chromatin
dna coiled in the chromatin histone
cell duplicates its dna replication
enzyme involved in replication dna polymerase
1 strand of bacteria is changed by a gene transformation
virus that infects bacteria bacteriophage
monomer of nucleic acids nucleotide
A=T and G=C base pairing
change in the dna sequence mutation
changes in 1 or few nucleotides point mutation
mutation that shifts the reading frame frameshift mutation
extra set of chromosomes polyploidy
genes operating together operon
operon is turned off operator
cells become specialized differentiation
controls the differentiation of cells and tissue hoxgene
codes for proteins exon

Cell Cycle and Mitosis Crossword

Type
Crossword
Description

_______ is a self-replicating material present in nearly all living organisms. Dna
_____ is the amount of space that a substance or object occupies volume
_____ is the outside part of something that you can calculate surface area
_____ is the series of events that takes place in a cell cell cycle
______ is a microscopic single-celled organism that has no distinct nucleus prokaryote
_____ is an organism consisting of a call or cells eukaryote
___ is the material of which the chromosomes of organbisms other than bacteria chromatin
_____ are pieces of identical DNA that are crucial in the process of cell replication and division sister chromatids
____ is a threadlike structure of nucleic acids and protein found in the nucleus chromosome
____ is a minute cylindrical organelle near the nucleus in animal cells centriole
___ is the resting phase between the first and second divisions of meiosis interphase
__ is the division of a cell into two daughter cells with the same genetic material cell division
__ is a type of cell division that resultis in two daughter cells each having the same number mitosis
___ is the first stag of cell division , before metaphase prophase
____ is the second stage of cell division metaphase
___is the stage of meiotic or mitotic cell division anaphase
___ is the final phase of cell division telophase
__ is the cytoplasmic division of a cell at the end of mitosis or meiosis cytolinesis
__ forms a protein structure that divides the gentic material in a cell spindle fiber
__ is the disase caused by an uncontrollrd division of abnormal cells in a part of the body cancer

DNA Crossword Puzzle

Type
Crossword
Description

A compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA. Nucleotide
A pair of parallel helices intertwined aboucomt a mon axis,especially that in the structure of the DNA molecule. Double Helix
Constrains imposed by the molecular structure of DNA and RNA on the formation of hydrogen bonds among the four purine and pyrimidine bases such that adenine pairs with thymine or uracil, and guanine pairs with cytosine. Base-pairing rules
Genetics. The process by which double-stranded DNA makes copies of itself, each strand, as it separates, synthesizing a complementary strand. Replication
Any of a class of enzymes involved in the synthesis of deoxyribonucleic acid from its deoxyribonucleoside triphosphate precursors. DNA Polymerase
Molecular biology describes the two-step process, transcription and translation,by which the information in genes flows into proteins. Central Dogma
Any of a class of single-stranded molecules transcribed from DNA in the cell nucleus or in the mitochondrion or chloroplast RNA
The first step of gene expression, in which a particular segment of DNA is copied into RNA. Transcription
An enzyme that synthesizes the formation of RNA from a DNA template during transcription. RNA Polymerase
The form of RNA in which genetic information transcribed from DNA as a sequence of bases is transferred to a ribosome. Messenger RNA
A type of RNA, distinguished by its length and abundance, functioning in protein synthesis as a component of ribosomes. Ribosomal RNA
A small RNA molecule, consisting of a strand of nucleotides folded into a clover-leaf shape, that picks up an unattached amino acid within the cell cytoplasm and conveys it to the ribosome for protein synthesis. Transfer RNA
The process follows transcription in which the DNA sequence is copied (or transcribed) into an mRNA. Translation
A triplet of adjacent nucleotides in the messenger RNA chain that codes for a specific amino acid in the synthesis of a protein molecule. Codon
A codon that stops the synthesis of a protein molecule. Stop Codon
A codon that starts the synthesis of protein molecule. Start Codon
A sequence of three nucleotides in a region of transfer RNA that recognizes a complementary coding triplet of nucleotides in messenger RNA during translation by the ribosomes in protein biosynthesis. Anticodon
Occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene. Mutation
A type of mutation that causes a single nucleotide base substitution, insertion, or deletion of the genetic material, DNA or RNA. Point Mutation
A number of nucleotides in a DNA sequence that is not divisible by three. Frameshift Mutation

Cell division/DNA structure and replication Crossword

Type
Crossword
Description

What is the way in which cells produce and divide? Cell cycle
How is DNA organized in eukaryotic cells? chromosome
The relaxed form DNA takes in the nucleus chromatin
Formed by DNA coiling around histones. Nucleosome
What is a half of a chromosome that contains identical copies of DNA called? Sister chromatid
Cells that contain 2n chromosomes. Diploid
Cells with n number of chromosomes. Haploid
Structure at the center of a chromosome where the sister chromatids are attached in prophase. centromere
What signals the cellular reproduction process in cells? cyclin
Cyclins bind to what enzyme that initiates various phases that take place in the cell cycle? Cyclin- dependent kinase
Whats the result in which cells don't respond to normal cell cycle control mechanisms. Cancer
What are substances and agents known to cause cancer? Carcinogens
A form of replication in which parental strands of DNA separate, serve as templates, and producer DNA molecules that have one strand of parental DNA and one strand of new DNA. Semiconservative
An enzyme that catalyzes the addition of nucleotides to the new DNA strand. DNA polymerase
Elongates as DNA unwinds Leading strand
Elongates away from replication fork. Lagging strand
Lagging strand synthesized discontinuously by DNA polymerase. Okazaki fragments
Enzyme that unwinds and unzips the double helix by breaking hydrogen bonds between the bases leaving single strands of DNA. Helicase
What enzyme is added as the helix unwinds into short segments of RNA? RNA primase
What is the biological process of producing two DNA molecules from one original DNA molecule? Replication