Genetics

Question 1

Heredity

Answer 1

The passing or inheritance of traits from parents to offspring.

Question 2

Chromosome

Answer 2

A double rod of condensed chromatin, or double helix of DNA.

Question 3

Gene

Answer 3

The set of information that controls a trait; a segments of DNA on a chromosome that codes for a specific trait.

Question 4

Trait

Answer 4

A characteristic that an organisms can pass on to its offspring through its genes.

Question 5

Dominant alleles

Answer 5

An allele whose trait always shows up in the organism when the allele is present.

Question 6

Recessive alleles

Answer 6

An allele that is masked, or hidden, when a dominant allele is present.

Question 7

Purebred

Answer 7

The offspring of many generations that have the same traits/alleles, known as homozygous.

Question 8

Hybrid

Answer 8

An organism that has two different alleles for a trait, known as heterozygous.

Question 9

Phenotype

Answer 9

An organism’s physical appearance, or visible traits.

Question 10

Genotype

Answer 10

An organism’s genetic makeup, or allele combinations.

Question 11

Mutation

Answer 11

A change in a gene or chromosome.