Heredity Test

Father of genetics.

This is an exchange of genetic information by homologous pairs of chromosomes in Prophase 1.

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

Heterozygous Dominant

If D represents the dominant allele of a gene, then d represents ______________________ allele.

According to Mendel, genes are inherited in __________________.

Another name for a "twisted ladder."

Homozygous recessive

This is a building block for a biomolecule.

If a(n) ____________________________ allele is present its traits will appear in the organism.

The different forms of a gene are called...

Purebred

Mendel used _________ to predict what percent of offspring would show a particular trait.

What does the notation TT mean to geneticists?

It is possible to have more genotypes than phenotypes in a cross.

What does the notation Tt mean to geneticists?

What is the chance of making a tall plant from a cross between two hybrid tall plants?

This is made from many nucleotides.

What does a Punnett square show?

A change in the DNA of an organism.

Which term refers to physical characteristics that are studied in genetics?

Cytosine pairs with ___________.

An organism's genotype is its...

When sex cells (gametes) combine to produce offspring, each sex cell will contribute.

A nucleotide consists of a sugar, nitrogen base and a ________________.

Scientists call an organism that has two different alleles for a trait a ..

Adenine pairs with ___________.

Factors that control traits.

Creates the backbone of the DNA.

What did Gregor Mendel do to study different characteristics in his genetics experiments?

In pea plants, the tall-stem and short-stem alleles are different forms of the same _______.

An organism's physical appearance is its

What is probability?