Inheritance
Punnett Squares
Pedigrees
DNA
Cladogram
100
An allele that is always expressed when present is
dominant
100
A Punnett square shows the possible _____________________ of offspring
Genotype
100
What does a circle in a pedigree represent?
Female
100
What is DNA?
An organism's genetic material.
100
which of the listed animals does not have a jaws
Hagfish
200
The physical characteristics of an organism are its
Phenotype
200
If two parents with the genotypes TT and tt are crossed, what is the genotype of all the offspring?
Tt- Heterozygous
200
A horizontal line connecting a circle and a square represents a
Mating or marriage
200
What is the shape of a DNA molecule?
Double Helix ( Twisted Ladder)
200
According to this cladogram, which animal is most closely related to the lizard?
The pigeon
300
The genetic makeup of an organism is its
Genotype
300
If two parents with the genotypes TT for Tall stem and tt for short stem are crossed, what is the phenotype of all the offspring?
Tall
300
Can pedigrees help predict the probability of future offspring inheriting a trait?
YES
300
What is a gene?
A section of DNA that carries the instructions for a specific trait.
300
What characteristic evolved in the lineage leading to the salamander, lizard, pigeon, mouse, and chimp, but not the perch or hagfish?
Jaws
400
The offspring of a cross between parents with different traits is called a
Hybrid or Crossbred
400
In the Tt x tt cross, what is the probability (percent) of a short offspring?
50%
400
What does a shaded symbol in a pedigree usually indicate?
That the individual has the trait being tracked
400
What is a change in the DNA sequence called?
Mutation
400
Which two animals on this cladogram share the most recent common ancestor?
The mouse and the chimp
500
The passing of traits from parents to offspring is called
Heredity
500
For the cross (Tt x Tt), what is the ratio of the offspring having the genotype tt?
1:3
500
The type of individuals who have one copy of a recessive allele but do not show the trait are called
Daily Double
Carriers
500
What is the building block of DNA? and what make it up?
The building block of DNA, made of a sugar, a phosphate, and a base (Nucleotide).