2. Mendel's Laws of Inheritance

In a cross between two individuals who are both heterozygous for the autosomal recessive disorders phenylketonuria (PKU, gene 1) and cystic fibrosis (CF, gene 2), what proportion of their children will have either PKU or CF, but not both disorders?

How does probability relate to the inheritance of genetic traits?

3. In a population of cats, if the frequency of the dominant allele (A) is 0.7 and the frequency of the recessive allele (a) is 0.3, what is the expected frequency of cats that are homozygous dominant (AA)?

In a diploid organism with n pairs of homologous chromosomes, what is the number of different possible genetic combinations of chromosomes that can be produced by independent assortment during gamete formation?

In a family where both parents are heterozygous for a recessive genetic disorder (genotype Aa), what is the probability that, when a couple has two children, both children will be affected by the disorder?

In a family where one parent is heterozygous for Huntington's disease (an autosomal dominant disorder) and the other parent is unaffected, what is the percent probability that exactly four out of seven children will inherit Huntington's disease?

A couple has two female children. What is the probability that their next child will be male?

In a population of cats, the allele for short tails (T) is dominant over the allele for long tails (t). If the frequency of the T allele is 0.6, what is the expected frequency of cats with short tails in the population, assuming Hardy-Weinberg equilibrium?

In a population of wildflowers where the frequency of the red allele c_r is p = 0.7, what is the expected frequency of homozygous red individuals (c_r c_r) under Hardy-Weinberg equilibrium?

In a population where the allele frequencies of C and c are 0.7 and 0.3 respectively, what is the expected frequency of the cc genotype under Hardy-Weinberg equilibrium?

Mary and Justin are both heterozygous carriers for an autosomal recessive disorder. What is the probability that they will have an affected child?

What is the probability that the genotype aa will be produced from a cross between two parents with genotype aa x aa?

In a population of cats, the allele for long tails (L) is dominant over the allele for short tails (l). If the frequency of the dominant allele (L) is 0.7, what is the expected frequency of cats with long tails in the population, assuming Hardy-Weinberg equilibrium?

With four distinct nucleotides, how many different combinations are possible in a sequence of six nucleotides?

In a family where both parents are heterozygous carriers for cystic fibrosis (genotype Ff), what is the probability that their daughter Irene is a carrier (heterozygous) for the disease? Express your answer as a percentage.