The probability of producing a tall pea plant from a genetic cross between two hybrid tall pea plants is____

A purebred chicken with white feathers is crossed with a purebred chicken that has black feathers. Each of their offspring has both black and white feathers because___

During meiosis ________

An organism’s genotype is its

In Mendel’s experiments, _______ of the plants in the F2 generation had a trait that had been absent in the F1 generation.

An organism that has two different alleles for a trait is a_____

________ is a number that describes how likely it is that an event will occur.

An organism’s physical appearance is its

When sex cells combine to produce offspring, each sex cell will contribute _____ the number of chromosomes in body cells

An organism that has two identical alleles for a trait is ____.

______ are made up of many genes joined together.

When Mendel crossed purebred short plants with purebred tall plants, all of the offspring were ___.

The sex cells produced by meiosis have ____ the number of chromosomes as the parent cells.

A______ organism is the offspring of many generations of organisms that have the same trait.

Mendel used the principles of _____ to predict what percent of offspring would show a particular trait.

The process in which a parent cell divides twice to produce sex cells is called

If D represents the ___ allele of a gene, then d represents the ______ allele.

A chart used to predict results of genetic crosses id known as a

An organism that has two dominant or two recessive alleles is said to be _____for that trait.

If all of the sex cells of an organism have the T allele, the genotype of that organusm must be

The chromosomes in a pair may each have ______alleles for each gene

An organism can't be heterozygous for some traits and homozygous for others.

Genes are carried from parents to their offspring on structures called

In a cross between two hybrid Tt pea plants, __percent or the offspring will be Tt.

If each of ten events is equally likely to occur, the probability of each individual event occurring is __ percent.

In pea plants, the tall-stem allele and the short-stem allele are different forms of the same

Alleles that are neither dominant nor recessive produce an inheritance pattern known as

If a dominant allele is present, its trait will appear in the

An organism’s genotype is its

A pea plant that is _______ for tall stems has the alleles Tt.

is the offspring of parents that have different alleles for a trait.

A _____ organism had two different alleles for a trait.

The different forms of a gene are called

Tt means

Factors that control traits are called

The chromosome theory of inheritance is that genes are carried from parents to offspring on