WorksheetsGenetics Review
Total questions: 29
Worksheet time: 10mins
Define traits
Two alleles that are passed from parent to offspring
Physical characteristics controlled by genes
An organism that is a hybrid
Recessive genes
Genes are...
Physical characteristics
A hybrid organism
A homozygous dominant cross
Factors that control traits
What is a hybrid?
An organism that has two different alleles
An organism that has 2 X chromosomes
An organism that has 2 dominant alleles
An organism that has 2 recessive alleles
What is a purebred dominant?
An organism that has two different alleles
An organism that has 2 X chromosomes
An organism that has 2 dominant alleles
An organism that has 2 recessive alleles
What is a purebred recessive?
An organism that has two different alleles
An organism that has 2 X chromosomes
An organism that has 2 dominant alleles
An organism that has 2 recessive alleles
What do two capital letters designate?
Two recessive genes
One dominant and one recessive gene
Two dominant genes
One single recessive gene
What do two lowercase letters designate?
Two recessive genes
One dominant and one recessive gene
Two dominant genes
One single recessive gene
What does 1 lowercase and 1 capital letter designate?
Two recessive genes
One dominant and one recessive gene
Two dominant genes
One single recessive gene
What is the term that is defined as the likelihood that a particular event will occur?
Punnett square
Codominance
Phenotype
Probability
What does a Punnett Square show?
All possible outcomes of a genetic cross
Only recessive genes in a genetic cross
Only the dominant genes in genetic cross
Neither the recessive genes or dominant genes in a genetic cross
An organism's phenotype is its...
Heterozygous
Codominance
Genetic makeup
Physical appearance
An organism's genetic makeup is...
Genotype
Phenotype
Codominance
Heterozygous
Homozygous refers to...
An organism that has two different genes for a trait
An organism that has two identical genes for a trait
A snapdragon flower that is pink
Only one gene for a trait
Heterozygous refers to...
An organism that has two different genes for a trait
An organism that has two identical genes for a trait
A snapdragon flower that is pink
Only one gene for a trait
Each sex cell (sperm and egg) contribute how many chromosomes to the combined cell?
A quarter of the normal number (11.5)
The normal number (46)
Double the normal number (92)
Half half the normal number (23)
XY chromosomes indicate a...
Female
Male
XX chromosomes indicate a...
Female
Male
Inheritance that is tied to the X and Y chromosomes is called...
Dominant/Recessive
Co-dominant
Sex-linked
Incomplete Dominant
A carrier is a person that has...
One recessive and one dominant gene for a trait
Two dominant genes for a trait
Two recessive genes for a trait
More than two genes for a trait
What is used to trace the inheritance of a trait over generations?
A genetic cross
A carrier
A karyotype chart
A pedigree chart
Define pedigree chart.
A chart that tracks which family members have a particular trait
A picture of all of the chromosomes in a cell
A geneticist who studies the inheritance of a traits in humans
A gene passed from parent to child on a sex chromosome
What is a benefit of having abnormally shaped blood cells, known as sickle-cell anemia?
You can see all the colors
You are resistant to malaria
You can fly
You can smell with your fingertips
What is a picture of chromosomes in a cell called?
Karyotype
Pedigree
Punnett Square
Family history
What do karyotypes and pedigree charts help to predict?
If you'll like Mountain Dew
What grade you'll get in 7th Grade Science
What car you'll drive
Genetic disorders
Who is considered the Father of Genetics?
Anton von Leeuwenhoek
Elon Musk
Gregor Mendel
Jeff Bezos
A circle that is half-shaded in a pedigree chart would represent...
A male that HAS the genetic disorder
A female that is NOT a carrier of the disorder
A male that is NOT a carrier for the disorder
A female that IS a carrier for the disorder
An abnormal condition that a person inherits through genes is called...
Genetic disorder
An accident
Homozygous recessive
Phenotype
Two tall pea plants...
have different phenotypes and genotypes
must have the same phenotypes and genotypes
have the same phenotypes but could have different genotypes
have the same genotypes but could have different phenotypes
Skin pigment (P) is dominant over the, lack of pigment (p). A person with albinism lacks brown skin pigment and has the genotype...
PP
Pp
pp
PpPp
