Classical Genetics II - crosses

What is a phenotype

• The genetic make up

• The physical trait

What is a genotype

• The genetic make up

• The physical trait

What is the genotypic ratio from this punnet square?

• 1:0

• 3:1

• 1:1

• 1:2:1

A homozygous dominant plant with brown seed pods is crossed with a heterozygous plant with brown seed pods. Does this punnet square correctly show this cross?

• YES

• NO

The genotypic ratio for this cross is:

• 3:1

• 1:2:1

• 9:3:3:1

• 1:0

• 1:1

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

The phenotypic ratio for this cross is:

• 3:1

• 1:2:1

• 9:3:3:1

• 1:0

• 1:1

The result of this cross produces genotypic and phenotypic ratios that are the:

• SAME

• DIFFERENT

Does this correctly show Mendel's P1 cross?

• YES

• NO - It should be Gg x Gg

• NO - It should be GG x Gg

• NO - It should be gg x gg

Does this correctly show Mendel's P2 cross?

• YES

• NO - It should be GG x gg

• NO - It should be GG x GG

• NO - It should be gg x gg

This type of inheritance pattern shows BOTH traits in possible offspring

• complete dominance
• incomplete dominance
• co-dominance
• dominant pattern