Genetics Vocabulary

Alternative forms of a gene are called

• Alleles
• Homozygous
• DNA
• Genetics

The physical appearance of an organism based on traits

• Genotype
• Phenotype
• Meiosis
• Genetics

The two types of alleles are (select two)

• dominant

• dormant

• expressive

• recessive

The process where egg and sperm cells are formed

• Mitosis

  (My-TOE-sis)

• Binary Fission

• MEiosis

• Cytosis

The cells produced via meiosis are called:

• sex cells
• somatic cells
• body cells
• skin cells

What causes genetic variation in meiosis?

• chromosomes lining up
• crossing over of chromosomes
• separation of chromosomes
• chromosomes pulling apart

A segment of DNA that codes for a trait

• gene

• allele

• chromosome

• chromatid

An observable characteristic is called a

• trait

• gene

• allele

• DNA

When an organism has two of the same alleles, it is called

• homozygous

• heterozygous

• recessive

• dominant

When an organism has two different alleles, it is called

• homozygous

• heterozygous

• recessive

• dominant