Types of
Crosses
Mendel
Squares
Definitions
Movie
Reviews
10
10
10
10
10
20
20
20
20
20
30
30
30
30
30
40
40
40
40
40
50
50
50
50
50
Types of Crosses - 10
• Between parents that differ in traits for a
single character
Types of Crosses– 10
• Monohybrid
Types of Crosses - 20
• Between parents that differ in traits for two
characters
Types of Crosses– 20
• Dihybrid cross
Types of Crosses - 30
• Between an F1 genotype and one of the
parentals
Types of Crosses– 30
• Back cross
Types of Crosses - 40
• Male and female parents are reversed in P
generation
Types of Crosses– 40
• Reciprocal cross
Types of Crosses - 50
• Between an individual of unknown genotype
and a homozygous recessive individual
• Bonus 50- Why do we do this cross?
Types of Crosses– 50
• Test cross
Mendel - 10
• What plant did Mendel work with?
Mendel – 10
• Peas
Mendel - 20
• What are 3 advantage of Mendel’s organism?
• Bonus: 10 points for each after 3
Mendel – 20
1.Easy to grow
2.Short lifespan
3.Discreet phenotypes
4.Many offspring
5.Can be outcrossed or selfed
6.True breeding
Mendel - 30
• What are the three different generation
names and what do they result from?
Mendel – 30
• P
• F1
• F2
Mendel - 40
• What was Mendel’s profession?
• Bonus 10: What is his first name?
Mendel – 40
• Austrian Monk
• Bonus: Gregor
Mendel - 50
• What was Mendel’s first law?
• Bonus 20: Explain
Mendel– 50
• The law of segregation
• Each individual can have two alleles that
encode different traits for one character;
these alleles separate from one another when
gametes are formed (this occurs during
Anaphase I of meiosis).
Squares - 10
• What are the genotypes of the F1 generation
of a monohybrid cross of the following?
• RRxrr
Squares – 10
• All Rr
Squares - 20
• What are the genotypes of the F1 generation
of the following cross?
• Rr x Rr
Squares – 20
• ¼ RR
• ½ Rr
• ¼ rr
Squares - 30
• In a test cross, the results are as follows. What
is the genotype of the unknown parent?
• ½ dominant phenotype
• ½ recessive phenotype
Squares – 30
• Heterozygous
Squares - 40
• Why is it that some traits “skip” a generation?
• Bonus 40: Draw punnent squares to illustrate
your answer.
Squares – 40
• RR x rr = all dominant phenotype
• Rr x Rr = ¼ recessive phenotype
Squares - 50
• An initial cross is made between a true
breeding tall plant and a true breeding dwarf
plant.
• What are the genotypes and phenotypes of
the F1 generation?
• The F1 is selfed.
• What are the genotypes and phenotypes of
the F2 generation?
Squares – 50
• F1
– all Tt
– all Tall
• F2
– ¼ TT, ½ Tt, ¼ tt
– ¾ Tall, ¼ Dwarf
Definitions - 10
• Character
Definitions – 10
• refers to something like eye color; seed shape
Definitions - 20
• Trait
Definitions – 20
• how a particular character manifests itself;
e.g., green or blue eye color; round or
wrinkled seed shape
Definitions - 30
• Allele
Definitions – 30
• The section of DNA that causes a specific trait
Definitions - 40
• Probability
Definitions – 40
• likelihood of occurrence of a certain event
Definitions - 50
• Meiosis
• Bonus 30: Name the steps of meiosis in order
Definitions – 50
• 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.
• Bonus: P1, M1, A1, T1, P2, M2, A2, T2
Movies - 10
• A movie in which an actor and actress,
members of different social classes, fall in love
aboard the ship during its ill-fated maiden
voyage
Movies. – 10
• Titanic
Movies. - 20
• A character who aims to become immortal,
conquer the wizarding world, subjugate nonmagical people, and destroy all those who
stand in his way
Movies. – 20
• Lord Voldemort
Movies. - 30
• The story of a fearless princess who sets off on
an epic journey alongside a rugged iceman, his
loyal pet reindeer and a clueless, naive
snowman to find her estranged sister
Misc. – 30
• Frozen
Movies. - 40
• What is this BBC TV show?
Movies. – 40
• Sherlock
Movies. - 50
• The story of a son who is to succeed his father
as king; however, his uncle murders his father
and the son is fooled into thinking he was
responsible and flees into exile in shame and
despair.
Movies. – 50