Unit 4: Genetics Vocab Flashcard 1

Front

Genes come in pairs because you have 23 pairs of chromosomes. True or False?

Back

True

Front

What is a tool used to predict the results from crossing 2 sets of alleles?

Back

Punnett square

Front

What term describes an allele that is not expressed when combined with a dominant form of the allele?

Back

Recessive

Front

What is a change in the original DNA sequence during replication called?

Back

Mutation

Front

What is the basic unit of heredity that consists of a segment of DNA on a chromosome?

Back

Gene

Front

What is the term for the observable characteristics of an organism?

Back

Phenotype

Front

What do you call an allele that is expressed even when only one copy is present?

Back

Dominant

Front

What is the term for an organism that has two identical alleles for a trait?

Back

Homozygous

Front

What is the process by which DNA makes a copy of itself?

Back

Replication

Front

What is the term for different forms of a gene?

Back

Alleles