Chromosomes Genes and DNA

Front

A chromosome is made of coiled up ___________.

Back

DNA

Front

A segment of DNA that codes for a trait is called a ___________.

Back

gene

Front

The part of the cell that contains chromosomes and genes is the ___________.

Back

Nucleus

Front

Eye color, hair color, having freckles, etc. are examples of ___________.

Back

Traits

Front

This is an allele whose trait will be hidden if the dominant allele is present. It is called ___________.

Back

recessive

Front

The observable characteristics of an organism are known as its ___________.

Back

phenotype

Front

The genetic makeup of an organism is referred to as its ___________.

Back

genotype

Front

A ___________ is a variant form of a gene.

Back

allele

Front

The structure that holds two sister chromatids together is called the ___________.

Back

centromere

Front

Chromosomes are found in the ___________ of a cell.

Back

nucleus