Study Guide Chapter 6

Study guide for Chapter 6  Test

Vocabulary

Heredity

Dominant trait

Recessive trait

Gene

Allele

Phenotype

Genotype

Probability

Punnett Square

Heterozygous

Homozygous

True Breeding

Genetic variation

Gene pool

What is the difference between a trait and a characteristic

What is the difference between a gene and allele

What is the difference between genotype and phenotype

What is the difference between  true breeding and not true breeding?

Know how to fill in a Punnett square and then calculate percentages

What happened after Mendel’s 1^st generation and 2^nd generation?

What is sickle cell anemia? What does it tell us about genes?

How are genes and alleles related to genotype and phenotype?

1              R               R R r

2                    T              t            t            t

3                   s           S s S

4                    t             T            T            t

In square 1 what is the possibility of having a RR, Rr and rr, genotype offspring?

RR_____     Rr ______ rr_______

In square2 what is the possibility of having a TT, Tt and tt, genotype offspring?

TT_____     tT ______ tt_______

Make your own Punnett Square.

If mom is heterozygous purple skin and dad is homozygous orange skin what are the chances the baby has purple or orange skin?  P = purple -   p = orange.