The study ofheredity and thevariation ofinheritedcharacteristics.

It is a locus of DNA that encodes a functional protein product, and is the molecular unit

of heredity.

B. Allele

D.Chromosome

A. Gene

C. Genome

A. Gene

The allele of a gene that masks or suppresses the expression of an alternate

allele.

D. Recessive

A.Homozygous

B. Dominant

C.Heterozygous

B. Dominant

It is the physical appearance of an organism.

C. Genotype

B. Genotypic ratio

D. Phenotype

A. Phenotypic ratio

D. Phenotype

A Mendelian law which states that every individual organism contains two alleles for each

trait, and that these alleles separate during meiosis.

C. Independent Assortment

D. Dominance

B. SegregationA. Unit Factor B. Segregation

Problem: 1

In Squarepants family, yellow body (Y) is dominant against brown

body (y). If SpongeBob which is a purebred married SpongeJanewhich is recessive for the trait

what would be the genotype of their kids?

Problem: 1.1

What if the F1 generation married another sponge with the same

trait. Find the genotype, phenotype, G.R and P.R of the F2

generation.

Problem: 2

Patrick recently married Patti, acute girl he met at a local dance. Heis considered a purebred for his tallhead shape (T), which is dominantover a short head (t). If Patti is ashort-headed woman, what type ofheads would their children have?

Problem: 2.1

What if the F1 generation married another starfish with the same trait.

What percentage of the F2 will be phenotypically tall? short?

Problem: 3

SquidWard and SquidLiza, have the longest nose in the family.

SquidWard is believed to be heterozygous for his long nose shape, while SquidLiza’s family brags that they are a pure line. Show the possible trait of their

Children.

Problem: 3.1

What if F1 is crossed to homozygous short nose squid. Determine the phenotype of the F2 generation. What fraction of the F2 will be

phenotypically long? Short? Give the P.R and G.R .

Problem: 4

Barnacle boy is blood type A(IA). He married a girl whose blood type is

B(IB). If they are both heterozygous(having an allele i) for

the trait determine the possible blood type of their children.

Problem: 4.1

If Barnacle boy is afflicted to a pattern baldness (XbY) and his wife is a carrier for

the trait (XBXb). What are the percentage of having normal, carrier, and afflicted children?

Problem: 5

Elizabeth who is a carrier of hemophilia (XHXh) married Mermaid man which is normal (XHY).

What are the chance of having Normal? Carrier? and Afflicted children in fraction.

Direction: Give the most appropriate answer for every questions.

1.Give one importance of genetics.

2.Choose one law in Mendelian law of inheritance then illustrate and explain it as brief as you can.

3. Interpret and solve (3 points)

SpongeBob is known for hisbig round eyes (R), which isdominant over an oval eyeshape (r). If he is heterozygousfor his round eye shape andmarries a woman with oval eyeshape, what type of eyes mightthe kids have? Give thephenotypic ratio of the F1generation.