PBS - Unit 2.2 Study Guide

Front

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

Back

dominant

Front

Bundled up, organized DNA is called a __________.

Back

chromosome

Front

Assuming a trait is AUTOSOMAL RECESSIVE, a person with the genotype 'Aa' would be __________.

Back

unaffected

Front

Each identical side of a chromosome is the __________.

Back

chromatid

Front

By looking at the chromosomes is this individual biologically male or female? How do you know?

Back

Male, because they have one X and one Y chromosome.

Front

What is the basic unit of heredity that occupies a specific location on a chromosome?

Back

gene

Front

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

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 structure that holds the two sister chromatids together?

Back

centromere