Mendel Genetics Midterm

Front

Are recessive traits shown with capital or lowercase letters?

Back

Lowercase

Front

The physical appearance or the way a gene looks is known as its...

Back

phenotype

Front

Which of the following is homozygous dominant? (RR, Rr, rr)

Back

RR

Front

What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 50% Brown Hair and 50% Blond Hair, 25% Brown Hair and 75% Blond Hair, 75% Brown Hair and 25% Blond Hair, 0% Brown Hair and 100% Blond Hair

Back

75% Brown Hair and 25% Blond Hair

Front

What is a genotype?

Back

The genetic make up (code)

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup, while phenotype refers to the physical expression of that makeup.

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene.

Front

What does heterozygous mean?

Back

Having two different alleles for a particular gene.

Front

What is a Punnett square used for?

Back

To predict the genotypes and phenotypes of offspring from a genetic cross.

Front

What is the law of segregation?

Back

The principle that during the formation of gametes, the two alleles for a trait separate from each other.