Mendelian Genetics

When an organism has two of the same alleles, it is called

• homozygous

• heterozygous

• recessive

• dominant

Tags

NGSS.HS-LS3-2

When an organism has two different alleles, it is called

• homozygous

• heterozygous

• recessive

• dominant

_____ are units of heredity made up of DNA.

• Centrioles

• Chromosomes

• Dnatoms

• Genes

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A/n _____ trait is a trait that prevents or masks the showing of another trait.

• controlling

• dominant

• influential

• superior

Tags

NGSS.HS-LS3-1

A trait that is hidden by the presence of a dominant trait is known as a _____ trait.

• coy

• demure

• modest

• recessive

Tags

NGSS.HS-LS3-1

A _____ is the physical appearance of an organism; i.e. black haired, blue-eyed, widow's peak.

• anyoldtype

• genotype

• notmytype

• phenotype

Tags

NGSS.HS-LS4-4

The set of genes carried by an organism; i.e. TT, Tt, tt is called a _____.

• genotype

• phenotype

• prototype

• stereotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Select all that would be considered phenotypes:

• Blonde

• Rr

• Short

• rr

Select all that would be considered genotypes:

• Blonde

• Rr

• Short

• rr

What genotype is homozygous dominant?

• RR

• Rr

• rr