29. Heredity

Alternative forms of genes are called __________.

Any two matched genes that are __________ are called alleles.

When the two alleles controlling a trait are different, the individual is __________ for the trait.

A person's genetic makeup is referred to as his or her genotype.

The expression of genes is called the __________.

A phenocopy occurs when __________.

The appearance of freckles is considered the __________.

Which of the following processes may separate linked genes during meiosis?

With the exception of gametes, human cells have __________ pairs of chromosomes.

A permanent structural change of a gene is called __________.

Genes that are located on the same chromosome are said to be __________.

A person without a Y chromosome will __________.

The 46 chromosomes of a zygote come from __________.

The number of different gametes that can be produced in a male, based on independent assortment alone, equals __________.