Question

1. Braw appropriate conclusions from the following crosses and results: (12 pts) Princess Leia Organa is the child of Anakin Skywalker (turned Darth Vader) and Padme Amidala Anakin was strong with the force, had wavy hair and a hot temper. Padme was force-nommal, had straight hair, and a very diplomatic temperament (suitable for a queen and an imperial senator) Leia (who was adopted by Senator and Queen Organa of Alderaan) has wavy hair is strong in the Force (but untrained) and has a diplomatic temperament befitting a princess Father. Anakin/Vader Mother: Padme Daughter. Leia a. Draw appropriate conclusions. The wedding of Han Solo and Leia Organa took place in the year 8 ABY on Coruscant, six weeks after the Battle of Dathomir. Han Solo has straight hair and a hot temper, and is force-normal Imagine they have 100 children (okay, not likely but just go with it). PHENOTYPES NUMBER OBSERVED 1 11 35 force-strong straight hair force-strong straight hair force-strong wavy hair force-strong wavy hair force-normal wavy hair force-normal wavy hair force-normal straight hair force-normal straight hair diplomatic hot temper diplomatic hot temper hot temper diplomatic hot temper diplomatic 2 33 b. Draw appropriate conclusions.

Answer 1

A)

Father Ankalin had strong force, wavy hair and hot temper.

Mother Padme had normal force, straight hair and diplomatic temper.

The daughtet Lela had strong force, wavy hair and diplomatic temperament.

This suggested that the dominant trait are strong force, wavy hair and diplomatic temperament. Because the F1 individual would express only the dominant trait.

Let strong force is encoded by S gene. Wavy hair is encoded by W gene. Diplomatic temperament is encoded by D gene

Parents: Father Ankalin (SSWWdd) × Mother (sswwDD)

Punnet square:

Gametes	swD
SWd	SsWwDd ( lela genotype)

B)

Now Lela married with Han Solo. Han solo phenotype was straight hair, hot temper and normal force. Han Solo has alll recessive trait. The genotype is sswwdd

Parents: Lela (SsWwDd) × Han solo (sswwdd)

This is the case of test cross. In this cross, F 1 is crossed with homozygous recessive parent.

Punnet square:

Gametes	swd
SWD	SsWwDd (strong force, wavy hair and diplomatic temperament.)
SwD	SswwDD ( strong force, straight hair and diplomatic temperament.)
SWd	SsWwdd ( strong force, wavy hair and hot temperament.)
sWD	ssWwDd ( normal force, wavy hair and diplomatic temperament.)
sWd	ssWwdd ( normal force, wavy hair and hot temperament.)
swD	sswwDd ( normal force, straight hair and diplomatic temperament.)
Swd	Sswwdd ( strong force, straight hair and hot temperament.)
swd	sswwdd ( normal force, straight hair and hot temper)

The difference in the number are due to the genetic distance between the genes. The greater number are of parental type offspring and the lowest number are of double cross over type offsprings.