Dominant and Recessive Alleles

An allele is..

• another word for a chromosome

• a homozygous genotype

• a heterozygous genotype

• an available form of a gene

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Alleles can be ..

• dominant

• recessive

• both dominant and recessive

• zygotes

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Alleles can determine

• your eye color

• the flower color of pea plants

• your hair type

• all of these options

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which term means 2 or more of the same allele

• hybrid

• pure

• heterozygous

• none of these

Hybrids are represented with

• 2 capital letters

• 2 lower case letters

• Roman numerals

• one capital and one lower case letter

In mice black fur (B) is dominant to brown fur (b). A "Bb" mouse would be

• brown

• white

• black

• brown and black

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

This type of allele is expressed whether there are one or two copies present

• dominant

• recessive

• homozygous

• heterozygous

Tags

NGSS.HS-LS3-1

Genetic traits are determined by

• genes

• chromosomes

• cells

• all of these

Tags

NGSS.HS-LS3-1

These types of alleles are ONLY expressed if the organism has 2 copies

• dominant

• recessive

• homozygous

• heterozygous

Tags

NGSS.HS-LS3-1