Ch 4 Test Review Heredity

An organisms ____________ is it physical appearance.

What is an allele whose trait always shows up in an organism when the allele is present?

A ________________ organism is the offspring of many generations that have the same trait.

The different forms of gene are called _____________.

What is your genus name?

What is your species name?

When a plant has two dominant alleles for tall stems, it is written as _____.

During meiosis, sex cells forms when chromosome pairs are _________.

According to the chromosome theory of inheritance, genes are carried from parents to ________.

Unlike DNA, RNA contains the nitrogen base ______________. 

The process by which the number of chromosomes is reduced by half to form sex cells is _______.

Each time a coin is tossed, there is a ___ % chance it will land heads up.

Chromosomes are made up of  _________________ joined together like beads on a string.

______ is a number that describes how likely it is that an event will happen.

The passing of traits from parents to offspring is called _____________. 

A _______________ is a change in a gene or chromosome.