Genetics Study Guide

Gentypes of genetically related family members

• codominance

• incomplete dominance

• pedigree

• Punnett Square

The exact genetic makeup of an organism, such as RR, Tt, PP is its?

• phenotype

• dominance

• genotype

• trait

Tags

NGSS.HS-LS3-1

One of the threadlike structures in the nucleus of a cell that contain directions for the cell's activities

• variation

• pedigree

• DNA

• chromosome

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Using the Punnett Square, identify the correct Genotypic ratio of AA:Aa:aa

• 2:2:1

• 1:2:1

• 2:1:1

• 1:1:1

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is an allele?

• A trait

• Different forms of a gene

• DNA

• Different types of parents

What is a genotype?

• Pair of alleles that determine a specific trait

• Observable physical trait

• A trait that is observed with only one copy of an allele

Tags

NGSS.HS-LS3-1

What is a phenotype?

• Pair of alleles that determine a trait

• Observable physical trait

• Different forms of a gene

What is a dominant gene?

• A trait that is observed when there are one OR two copies of the allele

• A trait that is observed only when there are two copies of the allele

• A trait that can be hidden in a generation

Tags

NGSS.HS-LS3-1

If a person is heterozygous for a trait, their genotype can be...

• Aa

• AA, aa

• AA, Aa

• AA

What is the missing genotype in the Punnett square?

• AA

• Aa

• aa

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2