Front

What are threadlike structures in a cell's nucleus that contain the genetic information that controls traits?

Back

Chromosomes

Front

What is a genetic factor that blocks another genetic factor?

Back

Dominant

Front

What is the nucleic acid that contains an organism's genetic material?

Back

DNA

Front

What is the process of making mRNA from DNA called?

Back

Transcription

Front

What is a factor in an experiment that stays the same?

Back

Constant

Front

What are the basic units of heredity that occupy a specific location on a chromosome?

Back

Genes

Front

What is the term for an organism's observable characteristics?

Back

Phenotype

Front

What is the genetic makeup of an organism called?

Back

Genotype

Front

What type of allele is expressed only when two copies are present?

Back

Recessive

Front

What is the process by which DNA is copied to make RNA?

Back

Transcription