LS 3-1, 3-2, & 3-3: Unit 2 Bend 1 Genetics

Front

What is the relationship between DNA and chromosomes?

Back

Chromosomes are made of DNA.

Front

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

Back

homozygous.

Front

A version or variation of a gene is called?

Back

allele.

Front

Which of the following best describes meiosis?

Back

It occurs only in cells in the reproductive structures of an organism.

Front

This type of allele is expressed whether there are one or two copies present.

Back

dominant.

Front

What is the basic unit of heredity?

Back

Gene.

Front

What is the physical expression of a trait called?

Back

Phenotype.

Front

What do we call different forms of a gene?

Back

Alleles.

Front

What is the term for an organism's genetic makeup?

Back

Genotype.

Front

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

Back

Transcription.