Genes/Heredity-Lesson 1 and 2-Luttmer

Passing of traits from parents to offspring is?

• genes

• genetics

• heredity

• dna

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

• dominant

• recessive

• homozygous

• heterozygous

An allele that is hidden whenever the dominant allele is present

• dominant

• recessive

• homozygous

• heterozygous

A number that describes how likely it is that an event will occur

• gene number

• 23 chromosomes

• likely

• probability

An organism's genetic makeup, or allele combinations.

• phenotype

• genotype

• heterozygous

• homozygous

An organism's physical appearance, or visible traits.

• phenotype

• genotype

• heterozygous

• homozygous

a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

• dna

• chomosomes

• alleles

• genes

series of events that cells go through as they grow and divide into two daughter cells

• meiosis

• cell cycle

• photosynthesis

• gene synthesis

a tool for tracing a trait through generations of a family used by geneticists

• family tree

• pedigree

• gene map

• chromosome map

The process that occurs in the formation of sex cells (sperm and egg) by which the number of chromosomes is reduced by half.

• meiosis

• mitosis

• cell cycle

• photosynthesis