Mendelian Genetics Practice

A genotype where only dominant alleles were passed on

from both parents for one trait

BB AA TT LL

• Homozygous Recessive

• Homozygous Dominant

• Dihybrid

• Heredity

Tags

NGSS.HS-LS3-1

A genotype where only recessive alleles

were passed on from both parents for one trait

bb aa tt ll

• Heredity

• Homozygous Dominant

• Homozygous Recessive

• Phenotype

Tags

NGSS.HS-LS3-1

genotype where one dominant and one recessive allele was passed on from both parents for one trait.

Bb Aa Tt Ll

• Allele

• Homozygous Dominant

• Homozygous Recessive

• Heterozygous

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The observable traits dictated by the genotype

• Phenotype

• Genotype

• Homozygous Recessive

• Homozygous Dominant

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The genetic cross between two parents for one trait:

Example BB x bb

B = dominant for brown

b = recessive for blue

• Incomplete Dominance

• Dihybrid Cross

• Monohybrid Cross

• Iron Cross

Tags

NGSS.HS-LS3-1

The Italian monk/scientist who first showed

the principles of genetics

• Watson and Crick

• Linnaeus

• Darwin

• Mendel

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the genotype for an offspring with long hair?

• SS

• Ss

• ss

Tags

NGSS.HS-LS3-1

Are recessive traits shown with capital or lowercase letters? 

• Capital

• Lowercase

The different forms of genes are known as

• environment

• probability

• traits

• alleles

Two different genes for a trait (sometimes called hybrid). Bb

• protein

• homozygous

• heterozygous

• genotype