Heredity and Genetics

What is phenotype?

• 2 homozygous alleles

• heterozygous alleles

• the physical expression of genes

• how genes are passed from one generation to the next

Tags

NGSS.HS-LS1-1

What is the notation for a homozygous recessive pair of alleles?

• Bb

• bb

• BB

• Hh

Traits that are passed from parents to offspring come from...

• the environment

• genes

• what's in the water

• physical skill

Tags

NGSS.HS-LS3-1

How do genes always appear?

• in cells

• DNA

• RNA

• in pairs

Tags

NGSS.MS-LS3-1

A dominate gene is notated with...

• capital letter

• lower case letter

• homozygous gene

• chromosome

What is it called when a dominate gene does not completely mask a recessive gene?

• complete dominance

• heterozygous dominance

• codominance

• incomplete dominance

How many traits does a monohybrid Punnett Square use?

• one

• two

• three

• none

In the above diagram, what is the genotype ratio?

• 2:2:0

• 0:4:0

• 1:2:1

• 3:0:1

Tags

NGSS.HS-LS3-2

In the above diagram, H is tall and h is short. What percent of the offspring are tall?

• 50%

• 25%

• 100%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An Allele is...

• a pair of genes

• one of the genes in a pair

• a dominant trait

• a recessive trait