Type
Crossword
Description

One of two (sometimes more) alternative forms of a gene. Allele
A procedure used in which fetal cells are removed from the amniotic fluid and analyzed genetically. Amniocentesis
A person 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
A trait that is expressed if at least one allele is present (T T OR T t). Dominant
The study of genes and heredity of living organisms. Genetics
The pair of alleles responsible for a particular trait (represented by letters of the alphabet). Genotype
The passing of genetic information from parent to offspring. Heredity
A pair of alleles that are different, where one is dominant & one is recessive (Ex. T t) Heterozygous
A pair of alleles that are the same; either both dominant (B B) or both recessive (b b) Homozygous
A dominant inheritance pattern in which the heterozygous genotype in which both alleles are partially expressed and often produces an intermediate phenotype. Incomplete
The physical appearance of an organism as a result of its genotype and the environment. Phenotype
A homozygous individuals that always produce offspring of the same phenotype when crossed together. Purebred
A gene that can be masked by a dominant gene and is only expressed when two recessive alleles are present (b b). Recessive
An observable characteristic of an organism usually controlled by genes. Trait
A square diagram that is used to predict an outcome of a particular genetic cross. Punnett
A diagram or family tree that shows the members of the family who are affected by a genetic trait. Pedigree
Another term for heterozygous (B b) Hybrid
A change in a DNA sequence Mutation

Genetics Word Search

Type
Word Search
Description

Chromosome
Traits
RNA
Replication
Recessive
Purebred
Punnett Square
Proteins
Probability
Phenotype
Pea Plants
Parents
Mutation
Mitosis
Meiosis
Inherited
Hybrid
Homozygous
Heterozygous
heredity
Genotype
Genetics
Genes
Dominant
DNA
Allele

Heredity Crossword Puzzle

Type
Crossword
Description

when many alleles and genes are involved Multiple Allele
when two dominant alleles are expressed in the offspring and they blend together Incomplete Dominance
the passing of physical characteristics from parents to offspring Heredity
a specific characteristic Trait
the study of heredity Genetics
egg and sperm cell joining Fertilization
fertilization of flowers pollination
organism from many generations with the same form of a trait Purebred
holds pollen in the flowers Stamen
takes pollen to make a seed Pistil
a number that describes how likely it is that an event will occur Probability
Physical appearance/ visible traits Phenotype
genetic makeup/alleles Genotype
when both alleles for a gene are expressed equally Codominance
factors that control a trait Genes
The different forms of a gene Alleles
trait that always shows up in the organism when the allele is present Dominant
is hidden whenever the dominant allele is present Recessive
having two of the same alleles Homozygous
having two different alleles Heterozygous

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

World of Genetics Word Search

Type
Word Search
Description

Characteristic
Mendel
Thymine
RNA
Recessive
Punnett Square
Probability
Phenotype
Pea Plants
Nitrogenous Bases
Mutation
Inherit
Hybrid
Homozygous
Heterozygous
Heredity
Guanine
Genotype
Genetics
Gene
Dominant
DNA
Cytosine
Cloning
Chromosome
Allele
Adenine

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

Mendelian Genetics Crossword

Type
Crossword
Description

mating between two individuals with different alleles for one trait Monohybrid Cross
specific characteristic of an organism Trait
a variant form of a gene Allele
cross between two different alleles that differ in two observed traits Dihybrid Cross
an organism that passes down certain phenotypic traits to its offspring True-breeding
the generation resulting immediately from a cross of the first set of parents F1 Generation
process of interbreeding individuals from genetically distinct populations Hybridization
any observable feature Character
parental generation P Generation
result of a cross between two F1 individuals F2 Generation
determines the appearance Dominant Allele
diagram used to predict an outcome of a particular cross or breeding experiment Punnett Square
hybrid that is heterozygous for alleles of two different genes Dihybrids
during the production of gametes the two copies of each hereditary factor separate so that offspring acquire one factor from each parent Law of Segregation
no effect on appearance Recessive Allele
genes where one is dominant and one is recessive Heterozygous
set of observable characteristics of an organism Phenotype
a hybrid that is heterozygous with respect to a specified gene Monohybrids
pair of matching alleles for a trait Homozygous
genetic cross between a homozygous recessive individual and corresponding heterozygote to determine the heterozygote’s genotype (PP x pP) Testcross
genetic constitution of an individual organism Genotype
mating between two individuals with different alleles for one trait Monohybrid Cross
variation in hereditary factors for independent characteristics Indept. Assortment

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

Biology genetics Crossword

Type
Crossword
Description

The stronger gene Dominant
Both alleles are blended together to show a different allele Ex: white(recessive) and red(dominant) blend to make pink. Incomplete dominance
Father of genetics I
2 of the same alleles Homozygous
2 different allele Heterozygous
Inherited characteristics Traits
Study of heredity Genetics
A combination of the 2 alleles which are both expressed Ex: a flower with both yellow and orange Codominance
The weaker allele Recessive
Shows all possible combination of alleles in a square and shows probability of getting a certain type of offspring. Punnet square
Physical expression of a gene (ex: purple or white) Phenotype
Genetic makeup in the letter (ex RR Rr rr) Genotype

Principles of Heredity Crossword

Type
Crossword
Description

Gregor __________________, the "father of genetics" Mendel
The outward expression or appearance phenotype
An alternate form of a gene allele
Having non identical alleles heterozygous
Having identical alleles homozygous
Square used to determine probability and results of cross punnet
The allele that is masked or covered up by the dominant allele recessive
The genetic make-up of an organism genotype
A cross that involves ONE pair of contrasting traits monohybrid
The plants Mendel did his studies on peas
When neither allele is dominant, each is codominant
a diagram showing a person's paired chromosomes karyotype
cell division producing clones mitosis
reduction division meiosis
allele expressed if only one is present dominant
transfer of genetic material between organisms genetic engineering
describing a pair of similar chromosomes homologous