Unit 6A Vocabulary Quiz (Genetics)

Process of making gametes (4 genetically different cells from one parent cell); occurs in two different phases (I or II).

• Mitosis

• Meiosis

• Reproduction

• Crossing Over

A cell that contains only one copy of a chromosome set (23 chromosomes in human gametes)

• Haploid

• Diploid

• skin cell

• autosome

Cell with PAIRS of homologous chromosomes (46 total chromosomes in humans)

• Haploid

• Diploid

• gamete

• egg

This is a type of cell that is always haploid, so when combined together a diploid organism is created.

• Gamete

• Autosome

• Muscle cell

• Zygote

When genes are exchanged between two chromosomes during Prophase I, which leads to genetic diversity (reason why the 4 daughter cells are genetically different).

• Nondisjunction

• Crossing Over

• Fertilization

• Hypnosis

Segment of repeating nucleotides in DNA that codes for a trait.

• Gene

• DNA

• RNA

• Trait

Alternative form of a gene located at a specific point on a chromosome (Hh has two different ones: H and h).

• Gene

• Trait

• Alleles

• Cells

Trait that appears over another trait when both are present.

• Dominant

• Recessive

• Incomplete Dominance

• Codominance

A trait that does not appear unless the other trait is absent (ex: cc, which represents an individual who has Cystic Fibrosis)

• Dominant

• Recessive

• Incomplete Dominance

• Codominance

two identical alleles (HH or hh)

• homozygous

• heterozygous

• hybrid

• mixed