LS.7.2.1 - Genetics Basics

What is the term for the passing of traits from parents to offspring?

• Genetics

• Heredity

• Replication

• Chromosome

Which of the following best describes a gene?

• A threadlike structure found in the nucleus

• A segment of DNA that codes for a specific trait

• A different form of a chromosome

• The process of copying DNA

What is the scientific study of heredity called?

• Replication

• Genetics

• Allele

• DNA

Which molecule contains the genetic information that makes up chromosomes?

• Protein

• DNA

• Enzyme

• Lipid

What is an allele?

• A type of chromosome

• A different form of a gene

• A process of cell division

• A segment of protein

Which process describes how a cell duplicates its DNA?

• Replication

• Heredity

• Genetics

• Mutation

If a scientist is studying how traits are passed from one generation to the next, which field are they working in?

• Chemistry

• Genetics

• Physics

• Astronomy

Explain how chromosomes, genes, and DNA are related.

• Chromosomes are made of genes, which are made of DNA.

• Genes are made of chromosomes, which are made of DNA.

• DNA is made of chromosomes, which are made of genes.

• Chromosomes are made of DNA, which contains genes.

A child has blue eyes, while both parents have brown eyes. Using your knowledge of alleles, what could explain this?

• The child inherited a dominant allele from both parents.

• The child inherited a recessive allele from each parent.

• The child did not inherit any alleles from the parents.

• The child’s eye color is not determined by alleles.

Why is DNA replication important before a cell divides?

• It ensures each new cell has the same genetic information.

• It changes the genetic code in each new cell.

• It removes unnecessary genes from the cell.

• It creates new alleles for the cell.