Understanding Heredity and DNA

What is the primary molecule that carries hereditary information in organisms?

• RNA

• DNA

• Protein

• Lipids

Where are genes located within a cell?

• In the cell membrane

• In the cytoplasm

• In the chromosomes

• In the ribosomes

What is the term used to describe the passage of genetic instructions from one generation to another?

• Evolution

• Mutation

• Heredity

• Adaptation

Which of the following best describes a gene?

• A type of cell

• A segment of DNA that codes for a trait

• A protein that performs cellular functions

• A lipid that stores energy

How many sets of chromosomes do humans typically have in each cell?

• 1

• 2

• 23

• 46

Which of the following is NOT a function of DNA?

• Storing genetic information

• Directing protein synthesis

• Providing energy for the cell

• Passing traits to offspring

What is the shape of the DNA molecule?

• Single helix

• Double helix

• Triple helix

• Linear strand

Which of the following statements is true about chromosomes?

• They are made of proteins only.

• They are found outside the nucleus.

• They contain genes.

• They are not involved in heredity.

What is the role of genes in an organism?

• To provide energy

• To code for traits

• To transport nutrients

• To protect the cell

Which of the following best describes the relationship between DNA, genes, and chromosomes?

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

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

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

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