6.1 Quiz Genes and Inheritance

The physical expression of your genes is called

• alleles

• genes

• phenotype

• gentotype

Tags

NGSS.HS-LS1-1

Different variations of a gene are called

• alleles

• gene expression

• phenotype

• genotype

Tags

NGSS.HS-LS3-2

The allele combinations for a particular trait is called

• genotype

• alleles

• gene expression

• phenotype

When an organism has two different alleles for a particular trait, they are referred to as what?

• heterozygous

• hemizygous

• homozygous dominant

• homozygous recessive

When an organism has two of the same alleles for a particular trait, represented by 2 lowercase letters, they are referred to as what?

• heterozygous

• hemizygous

• homozygous dominant

• homozygous recessive

When an organism has two of the same alleles for a particular trait, represented by 2 uppercase letters, they are referred to as what?

• homozygous dominant

• homozygous recessive

• heterozygous

• hemizygous

Tags

NGSS.HS-LS3-1

When an organism is heterozygous for a Mendelian trait, they will show which version of that trait?

• dominant

• recessive

• both traits

• in between the two traits

What is the genotypic ratio of this cross?

• 1:2:1

• 3:1

• 2:2

• 0:4

What is the phenotypic ratio of this cross?

• 1:2:1

• 3:1

• 2:2

• 0:4

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3

If we assume that the trait/disorder in the pedigree below is recessive, what can you tell about the mother in generation I?

• You can't tell anything from this pedigree

• She is expressing the trait/disorder

• She is homozygous dominant

• She is heterozygous and a carrier of the trait/disorder

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2