BIOL 31311/19/14

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 non-magical 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