Free Printable Introduction to Genetics Quiz

Worksheets

Introduction to Genetics Quiz

Total questions: 11

Worksheet time: 12mins

Name

Class

Date

When an organism has two different alleles for a trait, it is said to be

recessive

dominant

homozygous

heterozygous

The genetic makeup of an organism is its ________________, while the physical traits of an organism are called its_____________.

genotype, phenotype

homologous, heterlogous

phenotype, genotype

mitosis, meiosis

In a case of complete dominance, a cross between two parents who are pure for a certain trait will result in offspring that are:

Heterozygous

Homozygous

Incomplete Dominance

Codominance

A plant that has purple flowers is crossed with one that has white flowers. The offspring were half white and half purple. What were the genotypes of the parents?

Pp x pp

Pp x Pp

PP x pp

PP x WW

Which of the following is homozygous dominant?

An allele whose trait only shows up when no dominant allele is present.

hidden allele

dominant allele

recessive allele

present allele

T - tall and t = short
In the punnett square below, what belongs in the missing square

B = brown fur b = white fur
In the punnett square, what is the probability for white fur?

25%

50%

75%

In the punnett square shown, what is the genotypes of the two parents?

RW and RR

RW and WW

RR and WW

RW and RR

10.

If your genotype is Bb, then you can only pass a B or b to your child but you can't pass both.

Law of Dominance

Law of Segregation

Law of Independent Assortment

11.

Person A is smart and has brown hair while Person B is also smart but has blonde hair.