Type
Crossword
Description

A thread-like structure which carries genetic information in the form of genes. Chromosomes
The entire genetic material of an organism Genome
Hormone which is responcible for maintaining the uterus lining Progesterone
A specialised cell that transmits electrical impulses. Neurone
Meiosis produce four ? cells. Daughter
Meiosis produces these. In humans they are the sperm and egg. Gametes
The process where the gametes fuse together Fertilisation
Mitosis produces two genetically ? daughter cells identical
De-oxiribose is a ? molecule that makes up a nucleotide sugar
A compound consisting of a phosphate group, sugar molecule and base nucleotide
Two or more alternative forms of a gene Allele
An allele that is almost always expressed, even if only one copy is present. dominant
A distinct sequence of nucleotides forming part of a chromosome gene

Heredity and Genetics Crossword

Type
Crossword
Description

a distinguishing quality or characteristic trait
the offspring of two organisms with different forms of the same traits hybrid
trait that is blocked by the presence of a dominant factor recessive
a section of a chromosome that has genetic information for one trait gene
the two alleles that control the phenotype of a trait genotype
When the allele for a trait is on an X or Y sexlinked
when the two alleles of a gene are the same homozygous
when the two alleles of a gene are different heterozygous
a model used to predict possible genotypes and phenotypes of offspring Punnettsquare
the passing of traits from parents to offspring heredity
the study of how traits are passed from parents to offspring genetics
trait that blocks another genetic factor dominant
thread-like structures located inside the nucleus of cells that contain the genetic information that controls traits chromosome
different forms of the same genes alleles
how a trait appears or “is expressed” phenotype
when the offspring’s phenotype is a combination of the parent’s phenotypes incompletedominance
when both alleles can be observed in a phenotype codominance
deoxyribonucleic acid – an organism’s genetic material DNA
a molecule with a nitrogen base, a sugar, and a phosphate group nucleotide

Genetics Crossword Puzzle

Type
Crossword
Description

Factors that control a trait Allele
A person's genetic makeup Genotype
A person's physical appearance Phenotype
A change in a gene or chromosome Mutation
A chart that tracks which members of a family have a particular trait Pedigree
A picture of all the chromosomes in a cell Karyotype
An organism that has the same genes as the organism it was produced from Clone
Breeding two individuals with similar traits Inbreeding
Same alleles for a single trait Homozygous
Different alleles fo a single trait Hetrozygous
The science behind heredity Genectics
The chance of something occuring Probability
When two alleles are equal and present in both the phenotype and genotype of an organism Codominance
A chart that shows all the possible combinations of two genotypes Punnet Square
The process that produces 4 sex cells Meiosis
Breeding two individuals with different traits Hybridization
Moving healthy genes into cells to replace missing or abnormal genes in order to correct a genetic disorder Gene therapy
A genetic problem caused by an issue in an organism's genes Genetic disorder
A trait controlled by three or more alleles is said to have ________________ Multiple alleles
Choosing two organisms with desired traits to be bred Selective breeding

Meiosis Crossword

Type
Crossword
Description

Offspring of genetically different parents Hybrid
A hereditary unit Gene
A distinguishing feature Trait
One member of a pair of genes Allele
Separation of paired alleles Segregation
A group of four chromatids Tetrad
Cell formed by the union of two gametes Zygote
The union of male and female gametes Fertilization
A reproductive cell having the haploid numbers Gamete
Having the same number of chromosomes sets Haploid
Having different alleles Heterozygous
Having the same alleles at a gene Homozygous
Belonging to series of organic compounds Homologous
Two gametes from diploid zygote with twice the number Biploid
Dividing the cells in half Probability
Genetic law that contrast traits Principal of dominance
Chromosomes switch Crossing over

Genetic Variation Crossword

Type
Crossword
Description

Our cells contain two versions of every_____? Chromosome
A section of DNA that contains a sequence of bases Gene
A permanent change in the base sequence Mutation
DNA is made up of ______? Nucleotides
DNA is a double ______ structure Helix
A nucleotide is made up of a sugar, a base and a ______ Phosphate
Chromosomes are found in ______? Cells
An alternate form of a gene Allele
Chromosomes can be arranged into ________ pairs Homologous
A single egg/sperm has ____________ chromosomes Twenty Three
Organism's that reproduce ______ inherit two alleles Sexually
We can determine possible offspring by using ______ squares Punnett

Chapter 11 Crossword

Type
Crossword
Description

A cell that contains both sets of homologous chromosomes is said to be? diploid
Meaning " one set" haploid
Process in which the number of chromosomes per cell cut in half through the seperation of homologous chromosomes in a diploid cell Meiosis
The egg after it is fertilized Zygote
The stucture that is formed by this pairing Tetrad
As the homologous chromosomes form tetrads thay undergo a process called what? CrossingOver
These sets of chromosomes are what? Homologous
The scientific study of heredity Genetics
During sexual reproduction male and female reproductive cells join in a process known as what? fertilization
The offspring of crosses between parents with different traits are called what? Hybrids
Uses mathmatical probabaility to help predict the genotype and phenotype combinations in genetic crosses Punnet Square
Physical Traits Phenotype
genetical traits Genotype
phenotypes produced by both alleles are clearly expressed codominance
Traits controlled by two or more genes are said to be what? polygenic traits
A gene with two or more alleles is said to have what? mulitiple alleles
Sex cells Gametes
The likelyhood a particular event will occur probability

genetics review Crossword

Type
Crossword
Description

passing of traits from parents to offspring heredity
an organism with two different alleles for a trait hybrid
a factor that controls traits gene
a physical characteristic of an organism, ex. eye color trait
an allele whose trait always shows up in the organism dominant
each different form of a gene allele
the scientific study of heredity genetics
an allele whose trait is hidden in the presence of a dominant allele recessive
a type of organism whose offspring of many generations have the same form of a trait purebred
a number describing how likely an event is probability
an organism that has two identical alleles for a trait homozygous
an organism's physical appearance phenotype
an organism's genetic makeup genotype
an organism that has two different alleles for a trait heterozygous
process that produces sex cells meiosis
genes are passed from parents to offspring on these chromosomes
DNA replication takes place in the _____ nucleus
a section of DNA within a chromosome that codes for a specific protein gene
a mass of cancer cells tumor
when a base pair of the gene is added, deleted, or substituted mutation

Stem Cells Crossword

Type
Crossword
Description

early stage of a developing organism embryo
a cell that can differentiate into many different cell types pluripotent
developing human baby from week nine to birth fetus
environmental factor that causes gene mutations mutagen
structure in an ovary where an egg develops follicle
refers to a cell that can differentiate into all different cell types totipotent
a hollow fluid-filled structure blastocyst
pre-birth developement in humans antenatal
a primary germ layer ectoderm
union of egg and sperm to form a zygote fertilisation
ectoderm, mesoderm and endoderm germ layers
a process where malignant tumours spread throughout the body metastasis
refers to a cell that can differentiate into a number of closely related cells multipotent
gene that signals cells to continue dividing oncogene
release of an egg from the ovary ovulation
potential source of embryonic cells parthenote
fertilised egg that results from the fusion of haploid gametes zygote
membrane bound organelle containing the genetic material DNA nucleus
unspecialised undifferentiated
to become more specialised differentiate
cells of the outer layer of the blastocyst trophoblast
female gamete egg
male gamete sperm
the middle layer of cells or tissues of an embryo mesoderm
a disease caused by an uncontrolled division of abnormal cells in a part of the body cancer
an undifferentiated cell of a multicellular organism stem cell
replicate a fragment of DNA clone
cell division that results in two daughter cells mitosis
cell division that results in four daughter cells meiosis
a defect involving chromosome 21 down syndrome
thread-like structure composed of DNA and protein chromosome
cover flat surfaces epithelial tissues
a tumour of melanin-forming cells melanoma

Genetics Crossword Puzzle

Type
Crossword
Description

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring Genes
pairs of chromosomes that have similar genetic information Homologous Chromosomes
sex cells Gametes
determine sex or gender Sex chromosomes
determine all traits except gender Autosomes
having a single set of unpaired chromosomes Haploid
containing two complete sets of chromosomes, one from each parent Diploid
Cell division process that forms gametes Meiosis
genetically determined characteristics Traits
a genetic cross between a homozygous recessive individual and a corresponding suspected heterozygote to determine the genotype of the latter Testcross
Organisms inherit two copies of each gene, one from each parent. Organisms donate only one copy of each gene in their gametes Law of segregation
one of a pair of genes that appear at a particular location on a particular chromosome and control the same characteristic Allele
the genotype of an individual with 2 recessive of dominant alleles Homozygous
the genotype of an individual with one dominant and one recessive allele Heterozygous
genetic makeup of an individual Genotype
determines the physical appearance of an individual Phenotype
the more powerful gene Dominant
the less powerful gene Recessive
a grid system that is used to predict all possible genotypes resulting from a cross Punnett squares
uses a Punnett Square to observe the possible outcomes and probablilities for one trait Monohybrid cross
uses a Punnett Square to observe the possible outcomes and probabilities for two traits Dihybrid cross
allele pairs seperate independently of each other during gamete formation Law of independent assortment
the extent to which an event is likely to occur Probability
the exchange of chromosome segments between homologous chromosomes Cross over
genes that are closer together on the chromosome are more likely to be inherited together Genetic linkage
a person or other organism that has inherited a recessive allele for a genetic trait or mutation but does not display that trait or show symptoms of the disease Carrier
genes located in the sex chromosome Sex linked genes
the phenotype is somewhere between the two traits Incomplete dominance
both traits are fully expressed Codominance
traits that are controlled by a group of nonallelic genes Polygenic traits
ancestral lines or charts depicting the lineage or descent of an individual Pedigrees

Genetic Terms Crossword

Type
Crossword
Description

A genetically determined characteristic Heredity
The set of information that controls a trait, a segment of DNA on a chromosome Gene
An inherited trait that results from the expression of the dominant allele over the recessive allele Dominant Trait
The production of new living organisms by combining genetic information from two individuals of different sexes Sexual reproduction
The reproductive process that involves only one parent and produces offspring identical to the parent.(cloning) Asexual Reproduction
The genetic constitution of an individual organism Genotype
The set of observable characteristics of an individual resulting from the interaction of its genotype with the environment Phenotype
A threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes Chromosomes
A type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores Meiosis
Deoxyribonucleic acid is a molecule that carries most of the genetic instructions used in the development, functioning and reproduction of all know living organisms and many viruses DNA
A pair of parallel helices intertwined about a common axis, especially that in the structure of the DNA molecule Double Helix
The process by which humans use animals breeding and plant breeding to selectively develop particular phenotype traits Selective Breeding
The two twentieth-century biologists who discovered the double helix of DNA Waston and Crick
A genetically determined characteristic Trait
Is the phenotypic expression of an allele related to the sex chromosome of the individual Sex-linked genes
Having two different alleles for a trait Heterozygous
Different forms of a gene Allele
A cell with half of the normal chromosomes Haploid
Having two identical alleles for a trait Homozygous
A genetic trait that results from the expression of the two recessive alleles Recessive Trait
A tool to show all possible allelic combinations of gametes in a cross of parents with known genotypes in order to predict the probability of their offspring possessing certain sets of alleles Punnett square

DNA and RNA Crossword

Type
Crossword
Description

A change in the genetic material of cell Mutation
Each three base set of genetic code. Codon
The cell uses information from mRNA to make proteins during _____________ . Translation
The language for naming RNA. Genetic code
A condition in which an organism has extra set of chromosome. Polyploidy
A group of three bases of tRNA molecule that are complementary to the three bases of condon of mRNA. Anticodon
The tips of chromosomes. Telomere
The process of copying DNA from DNA. Replication
A kind of virus that infects bacteria cell. Bacteriophage
The process in which one stain of bacteria is change by a gene or genes from another bacteria. Transformation
An enzyme that joins individual nucleotides to produce a new strand of DNA. DNA Polymerase
A long chains of amino acids that make proteins Polypeptides
The synthesis of an RNA molecule from a DNA template , or pattern. Transcription
A type of RNA that carries copies of instructions for the assembly of amino acids into proteins from DNA to all cell part. mRNA
A type of RNA that carries each amino acid to form ribosomes. Transfer RNA
A singled-stranded nucleic acid that contains the sugar ribose. RNA
A chemical or physical agent in the environment that interacts with DNA and may cause mutation. Mutagen
A cell that contains two sets of homologous chromosomes. Diploid
A cell that contains only one set of genes. Haploid
Chromosomes in which one set comes from male parent and another set comes from female parent Homologous